REGTESTS: Remove tests with REQUIRE_VERSION_BELOW=1.9

HAProxy 2.0 is the lowest supported version, thus this never matches.
diff --git a/reg-tests/http-rules/h1_to_h1c.vtc b/reg-tests/http-rules/h1_to_h1c.vtc
deleted file mode 100644
index 9ae73f7..0000000
--- a/reg-tests/http-rules/h1_to_h1c.vtc
+++ /dev/null
@@ -1,186 +0,0 @@
-varnishtest "Composite HTTP manipulation test (H1 clear to H1 clear)"
-#REQUIRE_VERSION_BELOW=1.9
-
-# This config tests several http-request features and their interactions.
-# It extracts some samples, places them into variables, modifies some header
-# fields, appends multiple identical header fields, overwrites the start line
-# using several methods, then dumps the initial list of variables and the final
-# one, then applies CRC32 to these values as signatures that are easy to test.
-# Then it does it again in the backend after saving the current headers into
-# the same names prefixed by "fe-". Then it does the same on the response path.
-# If some modifications are performed, the crc values need to be adjusted based
-# on the failed logs.
-#
-# Run it with HAPROXY_PROGRAM=$PWD/haproxy varnishtest -l -k -t 1 "$1"
-
-feature ignore_unknown_macro
-
-server s1 {
-	rxreq
-	txresp \
-	  -status 234 \
-	  -hdr "hdr1: val1" \
-	  -hdr "hdr2:  val2a" \
-	  -hdr "hdr2:    val2b" \
-	  -hdr "hdr3:      val3a, val3b" \
-	  -hdr "hdr4:" \
-	  -body "This is a body"
-
-	expect req.method == "GET"
-	expect req.http.fe-sl1-crc == 992395575
-	expect req.http.fe-sl2-crc == 1270056220
-	expect req.http.fe-hdr-crc == 1719311923
-	expect req.http.be-sl1-crc == 2604236007
-	expect req.http.be-sl2-crc == 4181358964
-	expect req.http.be-hdr-crc == 3634102538
-} -start
-
-haproxy h1 -conf {
-    defaults
-	mode http
-	timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
-	timeout client  "${HAPROXY_TEST_TIMEOUT-5s}"
-	timeout server  "${HAPROXY_TEST_TIMEOUT-5s}"
-
-    frontend fe
-	bind "fd@${fe}"
-
-	#### requests
-	http-request set-var(req.method)     method
-	http-request set-var(req.uri)        url
-	http-request set-var(req.path)       path
-	http-request set-var(req.query)      query
-	http-request set-var(req.param)      url_param(qs_arg)
-
-	http-request set-header     sl1      "sl1: "
-
-	http-request set-method              "%[str(GET)]"
-	http-request set-uri                 concat(/bu/,req.uri,/eu)
-	http-request set-path                "/bp/%[var(req.path)]/ep"
-	http-request set-query               "bq&%[var(req.query)]&eq"
-
-	http-request set-header     sl2      "sl2: "
-
-	http-request set-header     sl1      "%[req.fhdr(sl1)] method=<%[var(req.method)]>; uri=<%[var(req.uri)]>; path=<%[var(req.path)]>;"
-	http-request set-header     sl1      "%[req.fhdr(sl1)] query=<%[var(req.query)]>; param=<%[var(req.param)]>"
-	http-request set-header     sl2      "%[req.fhdr(sl2)] method=<%[method]>; uri=<%[url]>; path=<%[path]>; "
-	http-request set-header     sl2      "%[req.fhdr(sl2)] query=<%[query]>; param=<%[url_param(qs_arg)]>"
-	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr1=<%[req.hdr(hdr1)]>; fhdr1=<%[req.fhdr(hdr1)]>;"
-	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr2=<%[req.hdr(hdr2)]>; fhdr2=<%[req.fhdr(hdr2)]>;"
-	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr3=<%[req.hdr(hdr3)]>; fhdr3=<%[req.fhdr(hdr3)]>;"
-	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr4=<%[req.hdr(hdr4)]>; fhdr4=<%[req.fhdr(hdr4)]>;"
-
-	http-request set-header     sl1-crc  "%[req.fhdr(sl1),crc32]"
-	http-request set-header     sl2-crc  "%[req.fhdr(sl2),crc32]"
-	http-request set-header     hdr-crc  "%[req.fhdr(hdr),crc32]"
-
-	#### responses
-	http-response set-header    be-sl1   "%[res.fhdr(sl1)]"
-	http-response set-header    be-sl2   "%[res.fhdr(sl2)]"
-	http-response set-header    be-hdr   "%[res.fhdr(hdr)]"
-
-	http-response set-header  be-sl1-crc "%[res.fhdr(sl1-crc)]"
-	http-response set-header  be-sl2-crc "%[res.fhdr(sl2-crc)]"
-	http-response set-header  be-hdr-crc "%[res.fhdr(hdr-crc)]"
-
-	http-response set-var(res.status)    status
-	http-response set-header    sl1      "sl1: "
-
-	http-response set-status    200
-
-	http-response set-header    sl2      "sl2: "
-
-	http-response set-header    sl1      "%[res.fhdr(sl1)] status=<%[var(res.status)]>;"
-	http-response set-header    sl2      "%[res.fhdr(sl2)] status=<%[status]>;"
-	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr1=<%[res.hdr(hdr1)]>; fhdr1=<%[res.fhdr(hdr1)]>;"
-	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr2=<%[res.hdr(hdr2)]>; fhdr2=<%[res.fhdr(hdr2)]>;"
-	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr3=<%[res.hdr(hdr3)]>; fhdr3=<%[res.fhdr(hdr3)]>;"
-	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr4=<%[res.hdr(hdr4)]>; fhdr4=<%[res.fhdr(hdr4)]>;"
-
-	http-response set-header  fe-sl1-crc "%[res.fhdr(sl1),crc32]"
-	http-response set-header  fe-sl2-crc "%[res.fhdr(sl2),crc32]"
-	http-response set-header  fe-hdr-crc "%[res.fhdr(hdr),crc32]"
-
-	default_backend be
-
-    backend be
-	#### requests
-	http-request set-header     fe-sl1   "%[req.fhdr(sl1)]"
-	http-request set-header     fe-sl2   "%[req.fhdr(sl2)]"
-	http-request set-header     fe-hdr   "%[req.fhdr(hdr)]"
-
-	http-request set-header   fe-sl1-crc "%[req.fhdr(sl1-crc)]"
-	http-request set-header   fe-sl2-crc "%[req.fhdr(sl2-crc)]"
-	http-request set-header   fe-hdr-crc "%[req.fhdr(hdr-crc)]"
-
-	http-request set-var(req.method)     method
-	http-request set-var(req.uri)        url
-	http-request set-var(req.path)       path
-	http-request set-var(req.query)      query
-	http-request set-var(req.param)      url_param(qs_arg)
-
-	http-request set-header     sl1      "sl1: "
-
-	http-request set-method              "%[str(GET)]"
-	http-request set-uri                 concat(/bu/,req.uri,/eu)
-	http-request set-path                "/bp/%[var(req.path)]/ep"
-	http-request set-query               "bq&%[var(req.query)]&eq"
-
-	http-request set-header     sl2      "sl2: "
-
-	http-request set-header     sl1      "%[req.fhdr(sl1)] method=<%[var(req.method)]>; uri=<%[var(req.uri)]>; path=<%[var(req.path)]>;"
-	http-request set-header     sl1      "%[req.fhdr(sl1)] query=<%[var(req.query)]>; param=<%[var(req.param)]>"
-	http-request set-header     sl2      "%[req.fhdr(sl2)] method=<%[method]>; uri=<%[url]>; path=<%[path]>; "
-	http-request set-header     sl2      "%[req.fhdr(sl2)] query=<%[query]>; param=<%[url_param(qs_arg)]>"
-	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr1=<%[req.hdr(hdr1)]>; fhdr1=<%[req.fhdr(hdr1)]>;"
-	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr2=<%[req.hdr(hdr2)]>; fhdr2=<%[req.fhdr(hdr2)]>;"
-	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr3=<%[req.hdr(hdr3)]>; fhdr3=<%[req.fhdr(hdr3)]>;"
-	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr4=<%[req.hdr(hdr4)]>; fhdr4=<%[req.fhdr(hdr4)]>;"
-
-	http-request set-header   be-sl1-crc "%[req.fhdr(sl1),crc32]"
-	http-request set-header   be-sl2-crc "%[req.fhdr(sl2),crc32]"
-	http-request set-header   be-hdr-crc "%[req.fhdr(hdr),crc32]"
-
-	#### responses
-	http-response set-var(res.status)    status
-	http-response set-header     sl1     "sl1: "
-
-	http-response set-status     200
-
-	http-response set-header     sl2     "sl2: "
-
-	http-response set-header     sl1     "%[res.fhdr(sl1)] status=<%[var(res.status)]>;"
-	http-response set-header     sl2     "%[res.fhdr(sl2)] status=<%[status]>;"
-	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr1=<%[res.hdr(hdr1)]>; fhdr1=<%[res.fhdr(hdr1)]>;"
-	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr2=<%[res.hdr(hdr2)]>; fhdr2=<%[res.fhdr(hdr2)]>;"
-	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr3=<%[res.hdr(hdr3)]>; fhdr3=<%[res.fhdr(hdr3)]>;"
-	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr4=<%[res.hdr(hdr4)]>; fhdr4=<%[res.fhdr(hdr4)]>;"
-
-	http-response set-header     sl1-crc "%[res.fhdr(sl1),crc32]"
-	http-response set-header     sl2-crc "%[res.fhdr(sl2),crc32]"
-	http-response set-header     hdr-crc "%[res.fhdr(hdr),crc32]"
-
-	server s1 ${s1_addr}:${s1_port}
-} -start
-
-client c1 -connect ${h1_fe_sock} {
-	txreq \
-	  -req GET \
-	  -url /path/to/file.extension?qs_arg=qs_value \
-	  -hdr "hdr1: val1" \
-	  -hdr "hdr2:  val2a" \
-	  -hdr "hdr2:    val2b" \
-	  -hdr "hdr3:      val3a, val3b" \
-	  -hdr "hdr4:"
-	rxresp
-
-	expect resp.status == 200
-	expect resp.http.be-sl1-crc == 487202719
-	expect resp.http.be-sl2-crc == 561949791
-	expect resp.http.be-hdr-crc == 1719311923
-	expect resp.http.fe-sl1-crc == 146151597
-	expect resp.http.fe-sl2-crc == 561949791
-	expect resp.http.fe-hdr-crc == 3634102538
-	expect resp.bodylen == 14
-	expect resp.body == "This is a body"
-} -run