scripts/pcp-push: don't delete temporary branch for a PR-style push
scripts/pcp-push: don't delete temporary branch for a PR-style push

Helps to leave the branch there so I can append to the PR.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp