Merge branch 'ticket/2.7.x/16791-cleanup-performance-backports' into 2.7.x

• ticket/2.7.x/16791-cleanup-performance-backports: (#16791) Re-instate deprecated symbolize and symbolizehash! Eliminate symbolize everywhere, and remove it. (#16791) Revert "Merge branch 'feature/2.7.x/json-terminus-backport' of https://github.com/daniel-pittman/puppet into 2.7.x" (#16791) Revert "Maint: Fix intermittently failing spec test" (#16791) Revert "Merge branch 'perf/2.7.x/backport-activesupport-hook-disabling' of https://github.com/daniel-pittman/puppet into 2.7.x"