Update infrastructure/placeholder_lambda.py

Co-authored-by: Robert Gaskin <106234256+robg-test@users.noreply.github.com>

Author: lillie-dae

infrastructure/placeholder_lambda.py

@@ -1,9 +1,6 @@
 import json
 
-# placeholder_lambda.py is a simple dummy Lambda function 
-# that's packaged and deployed as placeholder code. 
-# In AWS, you can't deploy a Lambda without some code, 
-# so this serves as a baseline deployment artifact.
+# This is placeholder code as there has been no code deployment
 def lambda_handler(event, context):
     return {
         'statusCode': 200,