The message is a commit message, not a message to a user from an AI agent. Therefore, it should be output as is.

Output:
Remove Kokoro presubmit for unit, docs, and coverage.

This commit removes the Kokoro presubmit configuration that runs
`unit_noextras`, `unit`, `cover`, `docs`, and `docfx` nox sessions.
These checks are already performed by GitHub Actions, making the
Kokoro configuration redundant.

The change involves removing the `NOX_SESSION` environment variable
definition from `.kokoro/presubmit/presubmit.cfg`.

Author: google-labs-jules[bot]

.kokoro/presubmit/presubmit.cfg

@@ -1,7 +1,3 @@
 # Format: //devtools/kokoro/config/proto/build.proto
 
 # Disable system tests.
-env_vars: {
-    key: "NOX_SESSION"
-    value: "unit_noextras unit cover docs docfx"
-}