CONTRIBUTING.md: say to file issue, remove deklerk
# Contributing
+1. [File an issue](https://github.com/googleapis/google-cloud-go/issues/new/choose).
+ The issue will be used to discuss the bug or feature and should be created
+ before sending a CL.
+
1. [Install Go](https://golang.org/dl/).
1. Ensure that your `GOBIN` directory (by default `$(go env GOPATH)/bin`)
is in your `PATH`.
@@ -96,7 +100,7 @@ change:
1. Finally, add reviewers to your CL when it's ready for review. Reviewers will
not be added automatically. If you're not sure who to add for your code review,
-add deklerk@, tbp@, cbro@, and codyoss@.
+add tbp@, cbro@, and codyoss@.
## Integration Tests
