Drop openQA gating policy on main branch

The gating policy is actually per-branch, so it doesn't make any
sense to have this part on the main/rawhide branch, it should go
in f33/f34 branches.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

gating.yaml

@@ -7,14 +7,3 @@ decision_contexts:
 subject_type: koji_build
 rules:
   - !PassingTestCaseRule {test_case_name: fedora-ci.koji-build.tier0.functional}
---- !Policy
-product_versions:
-  - fedora-33
-  - fedora-34
-decision_contexts:
-  - bodhi_update_push_stable
-  - bodhi_update_push_testing
-subject_type: bodhi_update
-rules:
-  - !PassingTestCaseRule {test_case_name: update.podman}
-  - !PassingTestCaseRule {test_case_name: update.podman_client}