Revert "disable warnings as errors"

This reverts commit 105a9b6.

Author: Accelerator1996

.github/workflows/build-linux.yml

@@ -130,7 +130,6 @@ jobs:
           --with-jtreg=${{ steps.jtreg.outputs.path }}
           --enable-jtreg-failure-handler
           --with-zlib=system
-          --disable-warnings-as-errors
           ${{ inputs.extra-conf-options }} ${{ inputs.configure-arguments }} || (
           echo "Dumping config.log:" &&
           cat config.log &&