Disable OSSettingsBluetoothPageTest.DISABLED_AllJsTests

The test is flaky.

TBR=fdegans@chromium.org,hansberry@chromium.org

Bug: 1035378
Change-Id: I3c307314efbf3c4b10b65e7d0bdf4f617d668309
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1981052Reviewed-by: Fabrice de Gans-Riberi <fdegans@chromium.org>
Commit-Queue: Fabrice de Gans-Riberi <fdegans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#727270}

chrome/test/data/webui/settings/chromeos/os_settings_browsertest.js

@@ -329,7 +329,8 @@ var OSSettingsBluetoothPageTest = class extends OSSettingsBrowserTest {
   }
 };
 
-TEST_F('OSSettingsBluetoothPageTest', 'AllJsTests', () => {
+// Flaky. https://crbug.com/1035378
+TEST_F('OSSettingsBluetoothPageTest', 'DISABLED_AllJsTests', () => {
   mocha.run();
 });