Merge branch 'mh/war-on-extra-refs'

* mh/war-on-extra-refs: refs: remove the extra_refs API clone: do not add alternate references to extra_refs everything_local(): mark alternate refs as complete fetch-pack.c: inline insert_alternate_refs() fetch-pack.c: rename some parameters from "path" to "refname" clone.c: move more code into the "if (refs)" conditional t5700: document a failure of alternates to affect fetch