Remove default for RW_API_KEY (will always be set)

Author: dmannarino

app/settings/globals.py

@@ -146,9 +146,7 @@
 AWS_SECRETSMANAGER_URL = config("AWS_SECRETSMANAGER_URL", cast=str, default=None)
 
 RW_API_URL = config("RW_API_URL", cast=str, default=None)
-RW_API_KEY = json.loads(
-    config("RW_API_KEY", cast=str, default=json.dumps({"api_key": "foo"}))
-)["api_key"]
+RW_API_KEY = json.loads(config("RW_API_KEY", cast=str))["api_key"]
 
 HOUR: int = int(60 * 60)
 # Temporarily set high timeout for TCLF. See https://gfw.atlassian.net/browse/GTC-1843