Merge pull request #3136 from httpwg/10-years-bad-luch

Remove the use of non-standard mirror

Author: mnot

Makefile

@@ -2,7 +2,6 @@ LIBDIR := lib
 INDEX_FORMAT := md
 GHPAGES_COMMIT_TTL = 7
 GHPAGES_BRANCH_TTL = 2
-XML_RESOURCE_ORG_PREFIX := https://xml2rfc-tools-ietf-org.lucaspardue.com/public/rfc
 
 
 include $(LIBDIR)/main.mk