autobuilder: Drop deleted --skip-vcs-matches argument for build
autobuilder: Drop deleted --skip-vcs-matches argument for build

No longer needed, it's the default.

djdeath/gnome-ostree,chergert/gnome-continuous,djdeath/gnome-ostree,GNOME/gnome-ostree,djdeath/gnome-ostree,vrutkovs/vrutkovs.github.io,GNOME/gnome-ostree,chergert/gnome-continuous,vrutkovs/vrutkovs.github.io,vrutkovs/vrutkovs.github.io,chergert/gnome-continuous,GNOME/gnome-ostree