Also delete uploaded file data after processing.

API uploads, e.g. with planemo, would leave upload_file_data_XXXXXX lying around in the configured temporary directory. Forever.

lib/galaxy/webapps/tool_shed/api/repositories.py

@@ -915,7 +915,8 @@ def create_changeset_revision( self, trans, id, payload, **kwd ):
                     message = error_message
         else:
             trans.response.status = 500
-
+        if os.path.exists( uploaded_file_name ):
+            os.remove( uploaded_file_name )
         if not ok:
             return {
                 "err_msg": message,