CLEANUP: acl: remove unused references to ACL_USE_*

Now that acl->requires is not used anymore, we can remove all references
to it as well as all ACL_USE_* flags.
diff --git a/src/ssl_sock.c b/src/ssl_sock.c
index ade1fe8..0f6526d 100644
--- a/src/ssl_sock.c
+++ b/src/ssl_sock.c
@@ -2967,40 +2967,40 @@
  * Please take care of keeping this list alphabetically sorted.
  */
 static struct acl_kw_list acl_kws = {{ },{
-	{ "ssl_c_ca_err",           NULL,         acl_parse_int,     acl_match_int,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_ca_err_depth",     NULL,         acl_parse_int,     acl_match_int,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_err",              NULL,         acl_parse_int,     acl_match_int,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_i_dn",             NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_key_alg",          NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_notafter",         NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_notbefore",        NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_sig_alg",          NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_s_dn",             NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_serial",           NULL,         acl_parse_bin,     acl_match_bin,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_used",             NULL,         acl_parse_nothing, acl_match_nothing, ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_verify",           NULL,         acl_parse_int,     acl_match_int,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_c_version",          NULL,         acl_parse_int,     acl_match_int,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_f_i_dn",             NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_f_key_alg",          NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_f_notafter",         NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_f_notbefore",        NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_f_sig_alg",          NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_f_s_dn",             NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_f_serial",           NULL,         acl_parse_bin,     acl_match_bin,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_f_version",          NULL,         acl_parse_int,     acl_match_int,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_fc",                 NULL,         acl_parse_nothing, acl_match_nothing, ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_fc_alg_keysize",     NULL,         acl_parse_int,     acl_match_int,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_fc_cipher",          NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_fc_has_crt",         NULL,         acl_parse_nothing, acl_match_nothing, ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_fc_has_sni",         NULL,         acl_parse_nothing, acl_match_nothing, ACL_USE_L6REQ_PERMANENT },
+	{ "ssl_c_ca_err",           NULL,         acl_parse_int,     acl_match_int     },
+	{ "ssl_c_ca_err_depth",     NULL,         acl_parse_int,     acl_match_int     },
+	{ "ssl_c_err",              NULL,         acl_parse_int,     acl_match_int     },
+	{ "ssl_c_i_dn",             NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_c_key_alg",          NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_c_notafter",         NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_c_notbefore",        NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_c_sig_alg",          NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_c_s_dn",             NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_c_serial",           NULL,         acl_parse_bin,     acl_match_bin     },
+	{ "ssl_c_used",             NULL,         acl_parse_nothing, acl_match_nothing },
+	{ "ssl_c_verify",           NULL,         acl_parse_int,     acl_match_int     },
+	{ "ssl_c_version",          NULL,         acl_parse_int,     acl_match_int     },
+	{ "ssl_f_i_dn",             NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_f_key_alg",          NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_f_notafter",         NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_f_notbefore",        NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_f_sig_alg",          NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_f_s_dn",             NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_f_serial",           NULL,         acl_parse_bin,     acl_match_bin     },
+	{ "ssl_f_version",          NULL,         acl_parse_int,     acl_match_int     },
+	{ "ssl_fc",                 NULL,         acl_parse_nothing, acl_match_nothing },
+	{ "ssl_fc_alg_keysize",     NULL,         acl_parse_int,     acl_match_int     },
+	{ "ssl_fc_cipher",          NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_fc_has_crt",         NULL,         acl_parse_nothing, acl_match_nothing },
+	{ "ssl_fc_has_sni",         NULL,         acl_parse_nothing, acl_match_nothing },
 #ifdef OPENSSL_NPN_NEGOTIATED
-	{ "ssl_fc_npn",             NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
+	{ "ssl_fc_npn",             NULL,         acl_parse_str,     acl_match_str     },
 #endif
-	{ "ssl_fc_protocol",        NULL,         acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_fc_use_keysize",     NULL,         acl_parse_int,     acl_match_int,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_fc_sni",             "ssl_fc_sni", acl_parse_str,     acl_match_str,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_fc_sni_end",         "ssl_fc_sni", acl_parse_str,     acl_match_end,     ACL_USE_L6REQ_PERMANENT },
-	{ "ssl_fc_sni_reg",         "ssl_fc_sni", acl_parse_reg,     acl_match_reg,     ACL_USE_L6REQ_PERMANENT },
+	{ "ssl_fc_protocol",        NULL,         acl_parse_str,     acl_match_str     },
+	{ "ssl_fc_use_keysize",     NULL,         acl_parse_int,     acl_match_int     },
+	{ "ssl_fc_sni",             "ssl_fc_sni", acl_parse_str,     acl_match_str     },
+	{ "ssl_fc_sni_end",         "ssl_fc_sni", acl_parse_str,     acl_match_end     },
+	{ "ssl_fc_sni_reg",         "ssl_fc_sni", acl_parse_reg,     acl_match_reg     },
 	{ /* END */ },
 }};