remove staging py config file in favor of terraform configs w/ burnettk

src/spiffworkflow_backend/config/staging.py

@@ -1,9 +0,0 @@
-"""Staging."""
-from os import environ
-
-GIT_COMMIT_ON_SAVE = True
-GIT_COMMIT_USERNAME = "staging"
-GIT_COMMIT_EMAIL = "staging@example.com"
-SPIFFWORKFLOW_BACKEND_PERMISSIONS_FILE_NAME = environ.get(
-    "SPIFFWORKFLOW_BACKEND_PERMISSIONS_FILE_NAME", default="staging.yml"
-)