Cleanup MIPS specific link configuration

webrtc/supplement.gypi

 {
   'variables': {
     'variables': {
       'webrtc_root%': '<(DEPTH)/webrtc',
       # Override the defaults in Chromium's build/common.gypi.
       # Needed for ARC and libc++.
       'mac_sdk_min%': '10.11',
       'mac_deployment_target%': '10.7',
     },
     'webrtc_root%': '<(webrtc_root)',
@@ skipping 11 matching lines @@
           ['target_arch=="arm64" or target_arch=="x64"', {
             'target_subarch%': 'arm64',
           }],
         ],
       }],
       ['OS=="android"', {
         # MJPEG capture is not used on Android. Disable to reduce
         # libjingle_peerconnection_so file size.
         'libyuv_disable_jpeg%': 1,
       }],
-      ['OS=="android" and target_arch=="mipsel"', {
-        # Linking fails with the gold linker: bugs.webrtc.org/5977.
-        'linux_use_bundled_gold%': 0,
-      }],
     ],
   },
   'target_defaults': {
     'target_conditions': [
       ['_target_name=="sanitizer_options"', {
         'conditions': [
           ['lsan==1', {
             # Replace Chromium's LSan suppressions with our own for WebRTC.
             'sources/': [
               ['exclude', 'lsan_suppressions.cc'],
             ],
             'sources': [
               '<(webrtc_root)/build/sanitizers/lsan_suppressions_webrtc.cc',
             ],
           }],
           ['tsan==1', {
             # Replace Chromium's TSan v2 suppressions with our own for WebRTC.
             'sources/': [
               ['exclude', 'tsan_suppressions.cc'],
             ],
             'sources': [
               '<(webrtc_root)/build/sanitizers/tsan_suppressions_webrtc.cc',
             ],
           }],
         ],
       }],
     ],
   },
 }