diff --git a/tools_webrtc/mb/mb_config.pyl b/tools_webrtc/mb/mb_config.pyl
index 858f4f7e39..e11b429771 100644
--- a/tools_webrtc/mb/mb_config.pyl
+++ b/tools_webrtc/mb/mb_config.pyl
@@ -74,8 +74,6 @@
       'Win64 Release (Clang)': 'win_clang_release_bot_x64',
       'Win32 ASan': 'win_asan_clang_release_bot_x86',
       'Win32 Release [large tests]': 'release_bot_x86',
-      # TODO(bugs.webrtc.org/8664): remove this duplicate:
-      'Win32 Release (MSVC)': 'win_msvc_release_bot_x86',
     },
     'client.webrtc.branches': {
       # iOS
@@ -214,8 +212,6 @@
       'win_experimental': 'release_bot_x86',
       'win_x64_win8': 'debug_bot_x64',
       'win_x64_win10': 'debug_bot_x64',
-      # TODO(bugs.webrtc.org/8664): remove this duplicate:
-      'win_msvc_rel': 'win_msvc_release_bot_x86',
     }
   },