Stop running Buildifier as part of the presubmit

We now have copies of .bzl files that we have to keep in sync between @rules_cc and @bazel_tools/tools
I propose to re-enable the Buildifier presubmit once this issue is resolved.

*** Original change description ***

Run Buildifier as part of the presubmit.

As a result we will catch some errors already in GitHub, and not later in Critique when it's harder to fix them.

***

PiperOrigin-RevId: 265636234
Change-Id: I10730665134240b3f47950e0e8fa0add8e0bd591
diff --git a/.bazelci/presubmit.yml b/.bazelci/presubmit.yml
index 2a35d6d..f055208 100644
--- a/.bazelci/presubmit.yml
+++ b/.bazelci/presubmit.yml
@@ -1,5 +1,4 @@
 ---
-buildifier: latest
 platforms:
   ubuntu1604:
     run_targets: