Revert "Devtools: Add metrics for drawer views being shown"

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index e52ed135aaf6f2317e5ef4d2b100b726f45f9ac4..284a319d62d218328c6e153e39f4e787e5636c99 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -7224,13 +7224,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <summary>Specified DevTools action has been taken.</summary>
 </histogram>
 
-<histogram name="DevTools.DrawerShown" enum="DevToolsDrawer">
-  <owner>sergeyv@chromium.org</owner>
-  <owner>samli@chromium.org</owner>
-  <owner>pfeldman@chromium.org</owner>
-  <summary>Specified DevTools drawer view was shown.</summary>
-</histogram>
-
 <histogram name="DevTools.InspectElement" units="ms">
   <owner>sergeyv@chromium.org</owner>
   <owner>vsevik@chromium.org</owner>
@@ -7243,12 +7236,14 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="DevTools.PanelShown" enum="DevToolsPanel">
   <owner>sergeyv@chromium.org</owner>
+  <owner>vsevik@chromium.org</owner>
   <owner>pfeldman@chromium.org</owner>
   <summary>Specified DevTools panel was shown.</summary>
 </histogram>
 
 <histogram name="DevTools.SettingChanged" enum="DevToolsSetting">
   <owner>sergeyv@chromium.org</owner>
+  <owner>vsevik@chromium.org</owner>
   <owner>pfeldman@chromium.org</owner>
   <summary>Specified DevTools setting was changed.</summary>
 </histogram>
@@ -60811,15 +60806,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="17" label="Resized view in responsive mode"/>
 </enum>
 
-<enum name="DevToolsDrawer" type="int">
-  <int value="1" label="Console"/>
-  <int value="2" label="Animations"/>
-  <int value="3" label="Network config"/>
-  <int value="4" label="Rendering"/>
-  <int value="5" label="Sensors"/>
-  <int value="6" label="Search"/>
-</enum>
-
 <enum name="DevToolsPanel" type="int">
   <int value="1" label="Elements"/>
   <int value="2" label="Resources"/>