REGTESTS: Don't run http_msg_full_on_eom script on the 2.4 anymore

The EOM block will be removed on the 2.4, thus this script will be broken on
this version. Now it is skipped for this version. It remains valid for 2.3
and 2.2.
diff --git a/reg-tests/http-messaging/http_msg_full_on_eom.vtc b/reg-tests/http-messaging/http_msg_full_on_eom.vtc
index 58824b8..5e914ef 100644
--- a/reg-tests/http-messaging/http_msg_full_on_eom.vtc
+++ b/reg-tests/http-messaging/http_msg_full_on_eom.vtc
@@ -2,6 +2,7 @@
 feature ignore_unknown_macro
 
 #REQUIRE_VERSION=2.2
+#REQUIRE_VERSION_BELOW=2.4
 #REGTEST_TYPE=devel
 
 # This test checks that an HTTP message is properly processed when we failed to