Fix doubled words in three docstrings

contentcuration/contentcuration/tests/test_chef_pipeline.py

@@ -21,7 +21,7 @@
 
 class EndpointNamesTestCase(BaseAPITestCase):
     """
-    Make sure the API endpoints defined in Ricecooker are the the expected ones.
+    Make sure the API endpoints defined in Ricecooker are the expected ones.
     """
 
     # checks

contentcuration/contentcuration/tests/test_gcs_storage.py

@@ -68,7 +68,7 @@ def test_uploads_max_age_of_5_if_content_database(self):
 
     def test_uploads_cache_control_private_if_content_database(self):
         """
-        Check that set set a cache-control of private if we're uploading a content database.
+        Check that we set a cache-control of private if we're uploading a content database.
         This ensures that no proxy will cache this file.
         """
         filename = "content/databases/myfile.sqlite3"

contentcuration/contentcuration/views/internal.py

@@ -508,7 +508,7 @@ def get_tree_data(request):
 @permission_classes((IsAuthenticated,))
 def get_node_tree_data(request):
     """
-    Get one level of children data for for the node `node_id` of
+    Get one level of children data for the node `node_id` of
     the `tree` tree associated with channel `data['channel_id']`.
     Returns { success: true, tree:[ children of node_id ] }
     """