Bug 1387867 - Disable gtest on windows devedition, it is permafailing because we PGO these builds. r=jlorenzo

MozReview-Commit-ID: E2UyYfjbAmj

--HG--
extra : rebase_source : f2bd191c34ae82f47f9215d5a74174f0716bbf9d

taskcluster/ci/test/tests.yml

@@ -227,6 +227,7 @@ gtest:
             linux64-qr/.*: ['mozilla-central', 'try']
             windows.*-pgo/.*: [] # permafails on pgo
             windows.*-nightly/.*: [] # permafails on nightly too
+            windows.*-devedition/.*: [] # permafails here too
             default: built-projects
     mozharness:
         script: desktop_unittest.py