Merge pull request #1780 from github/henrymercer/remove-redundant-env-var

Remove redundant environment variable from PR check

Author: henrymercer

.github/workflows/__config-export.yml

@@ -2,7 +2,6 @@ name: "Config export"
 description: "Tests that the code scanning configuration file is exported to SARIF correctly."
 versions: ["latest", "nightly-latest"]
 env:
-  CODEQL_ACTION_EXPORT_CODE_SCANNING_CONFIG: true
   CODEQL_PASS_CONFIG_TO_CLI: true
 steps:
   - uses: ./../action/init