Remove crufty bridge code from old CRD iOS app.

remoting/client/ios/bridge/host_proxy_unittest.mm

-// 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 !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-#import "remoting/client/ios/bridge/host_proxy.h"
-
-#import "base/compiler_specific.h"
-#import "testing/gtest_mac.h"
-
-namespace remoting {
-
-class HostProxyTest : public ::testing::Test {
- protected:
-  void SetUp() override { hostProxy_ = [[HostProxy alloc] init]; }
-
-  void CallPassThroughFunctions() {
-    [hostProxy_ mouseAction:webrtc::DesktopVector(0, 0)
-                 wheelDelta:webrtc::DesktopVector(0, 0)
-                whichButton:0
-                 buttonDown:NO];
-    [hostProxy_ keyboardAction:0 keyDown:NO];
-  }
-
-  HostProxy* hostProxy_;
-};
-
-TEST_F(HostProxyTest, ConnectDisconnect) {
-  CallPassThroughFunctions();
-
-  ASSERT_FALSE([hostProxy_ isConnected]);
-  [hostProxy_ connectToHost:@""
-                  authToken:@""
-                   jabberId:@""
-                     hostId:@""
-                  publicKey:@""
-                   delegate:nil];
-  ASSERT_TRUE([hostProxy_ isConnected]);
-
-  CallPassThroughFunctions();
-
-  [hostProxy_ disconnectFromHost];
-  ASSERT_FALSE([hostProxy_ isConnected]);
-
-  CallPassThroughFunctions();
-}
-
-}  // namespace remoting