[Coverage] Remove cc_blink_unittests from the test_suite.

The test has been removed in
https://chromium-review.googlesource.com/c/chromium/src/+/1053765

Bug: 789981
TBR=inferno@chromium.org,liaoyuke@chromium.org

Change-Id: Ic27246e0e839557f5dab5a7238c166b16ab1dba2
Reviewed-on: https://chromium-review.googlesource.com/1056065
Commit-Queue: Max Moroz <mmoroz@chromium.org>
Reviewed-by: Max Moroz <mmoroz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#558146}

tools/code_coverage/test_suite.txt

@@ -15,7 +15,6 @@ browser_tests
 cacheinvalidation_unittests
 capture_unittests
 cast_unittests
-cc_blink_unittests
 cc_unittests
 chrome_app_unittests
 components_browsertests