Merge pull request #11401 from mtnbikenc/remove-pr-template

Remove pull request template

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +0,0 @@
-NOTICE
-======
-
-Master branch is closed! A major refactor is ongoing in devel-40.
-Changes for 3.x should be made directly to the latest release branch they're
-relevant to and backported from there.