Revert "Override Gtk.CellLayout.pack_start and pack_end to add default values to be compliant with pygtk"
Revert "Override Gtk.CellLayout.pack_start and pack_end to add default values to be compliant with pygtk"

This reverts commit 232841148f35684be83a2f47b5b18da4fb74f63a.

thiblahute/pygobject,MathieuDuponchelle/pygobject,MathieuDuponchelle/pygobject,GNOME/pygobject,jdahlin/pygobject,thiblahute/pygobject,choeger/pygobject-cmake,thiblahute/pygobject,GNOME/pygobject,davibe/pygobject,pexip/pygobject,choeger/pygobject-cmake,jdahlin/pygobject,Distrotech/pygobject,nzjrs/pygobject,sfeltman/pygobject,GNOME/pygobject,alexef/pygobject,pexip/pygobject,sfeltman/pygobject,choeger/pygobject-cmake,nzjrs/pygobject,davibe/pygobject,alexef/pygobject,jdahlin/pygobject,MathieuDuponchelle/pygobject,davibe/pygobject,Distrotech/pygobject,pexip/pygobject,sfeltman/pygobject,davidmalcolm/pygobject,Distrotech/pygobject,alexef/pygobject,nzjrs/pygobject,davidmalcolm/pygobject,davibe/pygobject,davidmalcolm/pygobject,Distrotech/pygobject