Remove obsolete ChangeLog and release-tag make targets
Remove obsolete ChangeLog and release-tag make targets

thiblahute/pygobject,MathieuDuponchelle/pygobject,MathieuDuponchelle/pygobject,thiblahute/pygobject,pexip/pygobject,davibe/pygobject,davidmalcolm/pygobject,MathieuDuponchelle/pygobject,davibe/pygobject,sfeltman/pygobject,davibe/pygobject,sfeltman/pygobject,davibe/pygobject,GNOME/pygobject,thiblahute/pygobject,sfeltman/pygobject,davidmalcolm/pygobject,GNOME/pygobject,pexip/pygobject,GNOME/pygobject,pexip/pygobject,davidmalcolm/pygobject