Remove devtools_bridge component

The component was experimental and uses org.apache.http library,
which is now deprecated in Android.

BUG=488202
TBR=erikwright@chromium.org

Review URL: https://codereview.chromium.org/1142463003

Cr-Original-Commit-Position: refs/heads/master@{#330163}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: ca9f698bac3a5ae9af42d420cfff2f5f1736232f

all.gyp

@@ -884,11 +884,6 @@
                 '../chrome/chrome.gyp:unit_tests_apk',
               ],
             }],
-            ['enable_webrtc==1 and "<(libpeer_target_type)"=="static_library"', {
-              'dependencies': [
-                '../components/devtools_bridge.gyp:devtools_bridge_tests_apk',
-              ],
-            }],
           ],
         },
         {
@@ -900,8 +895,6 @@
             '../content/content_shell_and_tests.gyp:content_browsertests',
             '../tools/android/android_tools.gyp:android_tools',
             '../tools/android/android_tools.gyp:memconsumer',
-            # Unit test bundles packaged as an apk.
-            '../components/devtools_bridge.gyp:devtools_bridge_tests_apk',
             '../content/content_shell_and_tests.gyp:content_browsertests_apk',
           ],
         },  # target_name: android_builder_chromium_webrtc