fix: Revert "process: Use OwlBot for Google.Cloud.AIPlatform.V1"
fix: Revert "process: Use OwlBot for Google.Cloud.AIPlatform.V1"

This reverts commit 05fbe1753b93cbb5b7790c8d1c24eec24c60018d.

(Google.Cloud.AIPlatform.V1 isn't present in googleapis-gen at the
moment.)

jskeet/google-cloud-dotnet,jskeet/google-cloud-dotnet,jskeet/google-cloud-dotnet,googleapis/google-cloud-dotnet,jskeet/google-cloud-dotnet,jskeet/gcloud-dotnet,googleapis/google-cloud-dotnet,googleapis/google-cloud-dotnet,jskeet/google-cloud-dotnet