Remove the placement fallback since the DB has been fully backfilled.

data/model/legacy.py

@@ -857,22 +857,7 @@ def get_repo_image(namespace_name, repository_name, image_id):
            Image.docker_image_id == image_id)))
   
   if not location_list:
-    # REMOVEME When all existing imagestorages have a placement
-    try:
-      logger.warning('Checking for image without placement')
-      no_placement = (Image.select(Image, ImageStorage)
-        .join(ImageStorage)
-        .switch(Image)
-        .join(Repository)
-        .where(Repository.name == repository_name,
-               Repository.namespace == namespace_name,
-               Image.docker_image_id == image_id)
-        .get())
-      no_placement.storage.locations = {config.app_config['DS_BACKFILL_LOCATION']}
-      return no_placement
-    except Image.DoesNotExist:
-      logger.warning('Unable to find image')
-      return None
+    return None
 
   location_names = {location.location.name for location in location_list}