[ELI-702] undoing anything not for the test

Author: TOEL2

infrastructure/modules/lambda/lambda.tf

@@ -10,8 +10,6 @@ resource "aws_lambda_function" "eligibility_signposting_lambda" {
 
   source_code_hash = filebase64sha256(var.file_name)
 
-  code_signing_config_arn = local.enable_lambda_code_signing ? aws_lambda_code_signing_config.signing_config.arn : null
-
   runtime     = var.runtime
   timeout     = 30
   memory_size = 2048