e-d-s: make sure we also remove GConf's configs before running tests
e-d-s: make sure we also remove GConf's configs before running tests

Commit e0b99581 tries to remove GConf's config *after* a test
execution. But if the test fails, clean up might not happen. So
this commit adds try to remove configs *before* we start.

renatofilho/folks,renatofilho/folks,renatofilho/folks2,GNOME/folks,renatofilho/folks2,renatofilho/folks,renatofilho/folks,pwithnall/folks,renatofilho/folks2,GNOME/folks,renatofilho/folks2,pwithnall/folks,pwithnall/folks,GNOME/folks