WebRTC: Remove Dr Memory bots.

scripts/slave/recipe_modules/webrtc/api.py

Index: scripts/slave/recipe_modules/webrtc/api.py
diff --git a/scripts/slave/recipe_modules/webrtc/api.py b/scripts/slave/recipe_modules/webrtc/api.py
index 665ea33f2292d287ea2c54f2599ba14370b8d3f0..cb80df739813ddacc30f4350ffcf6d4b7eab7c6a 100644
--- a/scripts/slave/recipe_modules/webrtc/api.py
+++ b/scripts/slave/recipe_modules/webrtc/api.py
@@ -279,8 +279,8 @@ class WebRTCApi(recipe_api.RecipeApi):
       flakiness_dash = (not self.m.tryserver.is_tryserver and
                         not self.m.chromium.c.runtests.memory_tool)
 
-      # Dr Memory and Memcheck memory tools uses special scripts that doesn't
-      # play well with the gtest-parallel script.
+      # Memcheck uses special scripts that don't play well with
+      # the gtest-parallel script.
       if parallel and not self.m.chromium.c.runtests.memory_tool:
         test_executable = self.m.chromium.c.build_dir.join(
           self.m.chromium.c.build_config_fs, test)