celery_setup: drop param to setup_self and simplify OUR_MODULENAME

setup_self used to look like this:
	setup_self(setup_globals_func=setup_globals)
The function isn't called with any param, so drop it.
Rewrite function as needed.

The module var OUR_MODULENAME just has the module's name in
it. This is available as __name__ anyway, so use this to
initialize the var.

mediagoblin/celery_setup/from_celery.py

@@ -23,13 +23,12 @@ from mediagoblin import storage
 from mediagoblin.db.open import setup_connection_and_db_from_config
 from mediagoblin.celery_setup import setup_celery_from_config
 from mediagoblin.globals import setup_globals
-from mediagoblin import globals as mgoblin_globals
 
 
-OUR_MODULENAME = 'mediagoblin.celery_setup.from_celery'
+OUR_MODULENAME = __name__
 
 
-def setup_self(setup_globals_func=setup_globals):
+def setup_self():
     """
     Transform this module into a celery config module by reading the
     mediagoblin config file.  Set the environment variable
@@ -76,7 +75,7 @@ def setup_self(setup_globals_func=setup_globals):
     queue_store = storage.storage_system_from_paste_config(
         mgoblin_section, 'queuestore')
 
-    setup_globals_func(
+    setup_globals(
         db_connection=connection,
         database=db,
         public_store=public_store,

mediagoblin/celery_setup/from_tests.py

@@ -19,13 +19,12 @@ import os
 from mediagoblin.tests.tools import TEST_APP_CONFIG
 from mediagoblin import util
 from mediagoblin.celery_setup import setup_celery_from_config
-from mediagoblin.globals import setup_globals
 
 
-OUR_MODULENAME = 'mediagoblin.celery_setup.from_tests'
+OUR_MODULENAME = __name__
 
 
-def setup_self(setup_globals_func=setup_globals):
+def setup_self():
     """
     Set up celery for testing's sake, which just needs to set up
     celery and celery only.