Remove triggers for 'master' branch (#29516)

* Remove triggers for 'master' branch
- part of #29475 and the other half of #29505

* Update .azure/pipelines/quarantined-tests.yml

.azure/pipelines/ci.yml

@@ -7,7 +7,6 @@ trigger:
   batch: true
   branches:
     include:
-    - master
     - main
     - release/*
     - internal/release/*

.azure/pipelines/helix-matrix.yml

@@ -6,7 +6,6 @@ schedules:
 - cron: "0 */12 * * *"
   branches:
     include:
-    - master
     - main
   always: true
 - cron: "0 9 * * *"

.azure/pipelines/quarantined-pr.yml

@@ -8,7 +8,6 @@ trigger:
   batch: true
   branches:
     include:
-    - master
     - main
     - release/5.0
 
@@ -17,7 +16,6 @@ pr:
   autoCancel: true
   branches:
     include:
-    - master
     - main
     - release/5.0
   paths:
@@ -37,7 +35,6 @@ schedules:
   displayName: Every 4 hours test run
   branches:
     include:
-    - master
     - main
   always: true
 

.azure/pipelines/quarantined-tests.yml

@@ -7,7 +7,7 @@ schedules:
   displayName: Run tests once a day at 11 PM
   branches:
     include:
-    - master
+    - main
   always: true
 
 variables: