tests: remove some tests from the build
tests: remove some tests from the build

Remove tests that can be replaced by the more generic test-containers and
test-widgets programs.

pwithnall/mx,jonnylamb/mx,jonnylamb/mx,jonnylamb/mx,clutter-project/mx,pwithnall/mx,clutter-project/mx,clutter-project/mx,pwithnall/mx,jonnylamb/mx,clutter-project/mx,pwithnall/mx