Revert "Add COMPOSER_AUDIT_BLOCK_INSECURE to EPV workflow"

This reverts commit b70d850.

Author: iMattPro

.github/workflows/tests.yml

@@ -139,7 +139,6 @@ jobs:
               if: ${{ env.EPV != '0' }}
               env:
                   PHP_VERSION: ${{ matrix.php }}
-                  COMPOSER_AUDIT_BLOCK_INSECURE: "false"
               run: |
                   if [[ "$(printf '%s\n' "$PHP_VERSION" "8.0" | sort -V | head -n1)" == "8.0" ]]; then
                     composer require phpbb/epv:dev-master --dev --no-interaction --ignore-platform-reqs --with-all-dependencies