Remove 4.19 runs for Layered Zero Trust pattern

Author: yukinchan

ci-triggers/layeredzerotrust.yaml

@@ -9,19 +9,13 @@ triggers:
   - name: 'main'
     versions:
     - '4.20'
-    - '4.19'
 
   openshift:
   - version: '4.20'
     branch: 'main'
     platforms:
       - aws
     buildType: stable
-  - version: '4.19'
-    branch: 'main'
-    platforms:
-      - aws
-    buildType: stable
 
   subscriptions:
   - name: none