Revert "ChromeOS: Add SystemTimezoneAutomaticDetection policy."

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 f2be358683fa329c5ba6c4b9e267a86c728df041..d1430d552009d502d04f9d51feaa779c71689283 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -66169,7 +66169,6 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="322" label="Whitelist of USB detachable devices"/>
   <int value="323" label="Allow bluetooth on device"/>
   <int value="324" label="Suppress the unsupported OS warning"/>
-  <int value="325" label="Configure the automatic timezone detection method"/>
 </enum>
 
 <enum name="EnterprisePolicyInvalidations" type="int">
@@ -74085,7 +74084,6 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="-2063014275" label="enable-web-bluetooth"/>
   <int value="-2062872298" label="market-url-for-testing"/>
   <int value="-2048732429" label="enable-alternative-services"/>
-  <int value="-2047832738" label="enable-system-timezone-automatic-detection"/>
   <int value="-2047822258" label="enable-avfoundation"/>
   <int value="-2043128632" label="enable-tab-switcher-in-document-mode"/>
   <int value="-2025367104" label="enable-material-design-ntp"/>