Remove all blimp browsertests.

blimp/client/core/settings/BUILD.gn

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 }
 
 source_set("settings") {
-  visibility = [
-    "//blimp/client/core/*",
-    "//blimp/engine:browser_tests",
-  ]
+  visibility = [ "//blimp/client/core/*" ]
 
   sources = [
     "blimp_settings_delegate.h",
     "settings.cc",
     "settings.h",
     "settings_feature.cc",
     "settings_feature.h",
     "settings_observer.h",
     "settings_prefs.cc",
     "settings_prefs.h",
@@ skipping 83 matching lines @@
 
     sources = [
       "android/java/src/org/chromium/blimp/core/settings/AboutBlimpPreferences.java",
       "android/java/src/org/chromium/blimp/core/settings/Settings.java",
       "android/java/src/org/chromium/blimp/core/settings/SettingsObserverProxy.java",
     ]
 
     jni_package = "blimp/client/core/settings"
   }
 }