Remove PR template

.github/pull_request_template.md

@@ -1,21 +0,0 @@
---- Description of proposed changes ---
-
-
-
-
---- Merge policy ---
-
-- [ ] Travis CI PASS
-- [ ] `*-aws-runtest` PASS
-- [ ] `*-azure-runtest` PASS
-- [ ] `*-images-runtest` PASS
-- [ ] `*-openstack-runtest` PASS
-- [ ] `*-vmware-runtest` PASS
-- [ ] For `rhel8-*` and `rhel7-*` branches commit log references an approved
-  bug in Bugzilla. Do not merge if the bug doesn't have the 3 ACKs set to `+`!
-
---- Jenkins commands ---
-
-- `ok to test` to accept this pull request for testing
-- `test this please` for a one time test run
-- `retest this please` to start a new build