Revert "build: Look for copied Objective-C files in builddir"
Revert "build: Look for copied Objective-C files in builddir"

This reverts commit e004d5f397eb5a85b39273dbe578be99ea66d92f.

It broke the GNOME Continuous build, which uses autotools. This wasn’t
caught by CI because we don’t do an autotools CI build.

http://build.gnome.org/continuous/buildmaster/builds/2018/06/21/19/build/

Discussion in https://gitlab.gnome.org/GNOME/glib/merge_requests/127.

endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib