Remove automatic triggers.

.yamato/ml-agents-sample-export.yml

         - python3 -u -m ml-agents.tests.yamato.sample_curation  --scene "Assets/ML-Agents/Examples/Basic/Scenes/Basic.unity" "Assets/ML-Agents/Examples/Match3/Scenes/Match3.unity" "Assets/ML-Agents/Examples/WallJump/Scenes/WallJump.unity" "Assets/ML-Agents/TestScenes/TestCompressedGrid/TestGridCompressed.unity" "Assets/ML-Agents/TestScenes/TestCompressedTexture/TestTextureCompressed.unity"
     triggers:
         cancel_old_ci: true
-        expression: |
-            (pull_request.target eq "main" OR
-            pull_request.target match "release.+") AND
-            NOT pull_request.draft AND
-            (pull_request.changes.any match "com.unity.ml-agents/**" OR
-            pull_request.changes.any match "com.unity.ml-agents.extensions/**" OR
-            pull_request.changes.any match ".yamato/ml-agents-sample-export.yml") AND
-            NOT pull_request.changes.all match "**/*.md"
     artifacts:
         logs:
             paths: