Do not rely on dbus auto-activation.

sugar/shell/Makefile.am

@@ -3,19 +3,3 @@ sugar_PYTHON =		\
 	__init__.py	\
 	activity.py	\
 	shell.py
-
-# Dbus service file
-servicedir = $(datadir)/dbus-1/services
-service_in_files = com.redhat.Sugar.Shell.service.in
-service_DATA = $(service_in_files:.service.in=.service)
- 
-# Rule to make the service file with bindir expanded
-$(service_DATA): $(service_in_files) Makefile
-	@sed -e "s|\@bindir\@|$(bindir)|" $< > $@
-
-EXTRA_DIST =			\
-	$(service_in_files)	\
-	$(service_DATA)
-
-DISTCLEANFILES =		\
-	$(service_DATA)

sugar/shell/com.redhat.Sugar.Shell.service.in

@@ -1,3 +0,0 @@
-[D-BUS Service]
-Name=com.redhat.Sugar.Shell
-Exec=@bindir@/sugar shell

sugar/shell/shell.py

@@ -294,8 +294,3 @@ def main():
 
 	activityContainer = ActivityContainer(service, session_bus)
 	activityContainer.show()
-
-	gtk.main()
-
-if __name__ == "__main__":
-	main()