Remove all traces of Dr Memory.

webrtc/build/mb_config.pyl

Index: webrtc/build/mb_config.pyl
diff --git a/webrtc/build/mb_config.pyl b/webrtc/build/mb_config.pyl
index ce60cbc70ea72e11d33c3df03885787be6fdb6e7..1cc6753ab3630ce5c7d74d9518487467c4e832d3 100644
--- a/webrtc/build/mb_config.pyl
+++ b/webrtc/build/mb_config.pyl
@@ -76,8 +76,6 @@
       'Win64 Debug (Clang)': 'win_gn_clang_debug_bot_x64',
       'Win64 Release (Clang)': 'win_gn_clang_release_bot_x64',
       'Win SyzyASan': 'win_gn_syzyasan_release_bot_x86',
-      'Win DrMemory Full': 'win_gn_drmemory_debug_bot_x86',
-      'Win DrMemory Light': 'win_gn_drmemory_debug_bot_x86',
       'Win32 Release [large tests]': 'gn_release_bot_x86',
       'Win64 Debug (GYP)': 'gyp_debug_bot_x64_exclude_tests',
       'Win64 Release (GYP)': 'gyp_release_bot_x64_exclude_tests',
@@ -182,8 +180,6 @@
       'win_x64_clang_dbg': 'win_gn_clang_debug_bot_x64',
       'win_x64_clang_rel': 'win_gn_clang_release_bot_x64',
       'win_asan': 'win_gn_syzyasan_release_bot_x86',
-      'win_drmemory_light': 'win_gn_drmemory_debug_bot_x86',
-      'win_drmemory_full': 'win_gn_drmemory_debug_bot_x86',
       'win_baremetal': 'gn_release_bot_x86',
       'win_swarming': 'swarming_gn_debug_bot_x64',
       'win_x64_gyp_dbg': 'gyp_debug_bot_x64_exclude_tests',
@@ -294,11 +290,6 @@
     'win_gn_syzyasan_release_bot_x86': [
       'gn', 'syzyasan', 'minimal_symbols', 'openh264_release_bot', 'x86',
     ],
-    # TODO(kjellander): Flip DrMemory bots over to Release after GN migration
-    # (http://crbug.com/636414).
-    'win_gn_drmemory_debug_bot_x86': [
-      'gn', 'drmemory', 'minimal_symbols', 'openh264_debug_bot', 'x86',
-    ],
 
     # Mac
     'mac_gn_asan_clang_release_bot_x64': [
@@ -412,11 +403,6 @@
       'gyp_defines': 'chromium_ios_signing=0',
     },
 
-    'drmemory': {
-      'gn_args': 'is_component_build=true enable_iterator_debugging=false',
-      'gyp_defines': 'component=shared_library build_for_tool=drmemory',
-    },
-
     # This mixin is used to force configs that use it to fail. It
     # is used in two cases: when we have bots that we haven't looked
     # at yet and don't know whether they need MB or not, and for bots