Switch CI_CQ program to just run default_build

Change-Id: I48ddba293b26be8e66289d5ca011df76077f7f03
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/kudzu/+/176761
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed-service-accounts.iam.gserviceaccount.com>
Reviewed-by: Rob Mohr <mohrr@google.com>
Pigweed-Auto-Submit: Anthony DiGirolamo <tonymd@google.com>
diff --git a/tools/kudzu_tools/presubmit_checks.py b/tools/kudzu_tools/presubmit_checks.py
index 5b0159a..19801fd 100755
--- a/tools/kudzu_tools/presubmit_checks.py
+++ b/tools/kudzu_tools/presubmit_checks.py
@@ -113,9 +113,11 @@
     python_checks.gn_python_check,
 )
 
+CI_CQ = (default_build, )
+
 PROGRAMS = pw_presubmit.Programs(
     # keep-sorted: start
-    ci_cq=FULL,
+    ci_cq=CI_CQ,
     full=FULL,
     lintformat=LINTFORMAT,
     other_checks=OTHER_CHECKS,