Disable dark mode presubmit.

Whilst the dark mode CSS files are not being used, we don't need to
check them.

Bug: chromium:1188524
Change-Id: I670392e3a0d30fc57351c4561c0d89f76953fb61
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2773235
Commit-Queue: Jack Franklin <jacktfranklin@chromium.org>
Commit-Queue: Kim-Anh Tran <kimanh@chromium.org>
Auto-Submit: Jack Franklin <jacktfranklin@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 5840f4a..d7b41da 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -483,7 +483,9 @@
     results.extend(_CheckJSON(input_api, output_api))
     results.extend(_CheckDevToolsStyleJS(input_api, output_api))
     results.extend(_CheckDevToolsStyleCSS(input_api, output_api))
-    results.extend(_CheckDarkModeStyleSheetsUpToDate(input_api, output_api))
+
+    # TODO(jacktfranklin) re-enable. Temporarily disabled due to CSS generation bug. See crbug.com/1188524 for details.
+    # results.extend(_CheckDarkModeStyleSheetsUpToDate(input_api, output_api))
     results.extend(_CheckFormat(input_api, output_api))
     results.extend(_CheckOptimizeSVGHashes(input_api, output_api))
     results.extend(_CheckChangesAreExclusiveToDirectory(input_api, output_api))