Revert of New UMA settings fragment using Android prefs.

chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
index 80b57974104b94adf4e75520c5867c2faeed0038..d336d844287be3e034ac059142069e5c25009808 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
@@ -863,28 +863,6 @@
             int contentSettingsType, List<ContentSettingException> list);
     public native void nativeSetContentSettingForPattern(
             int contentSettingType, String pattern, int setting);
-
-    /**
-      * @return whether Metrics reporting is enabled.
-      */
-    public boolean isMetricsReportingEnabled() {
-        return nativeGetMetricsReportingEnabled();
-    }
-
-    /**
-     * Sets whether the metrics reporting should be enabled.
-     */
-    public void setMetricsReportingEnabled(boolean enabled) {
-        nativeSetMetricsReportingEnabled(enabled);
-    }
-
-    /**
-     * @return whether the metrics reporting preference has been set by user.
-     */
-    public boolean hasSetMetricsReporting() {
-        return nativeHasSetMetricsReporting();
-    }
-
     private native boolean nativeGetAcceptCookiesEnabled();
     private native boolean nativeGetAcceptCookiesManaged();
     private native boolean nativeGetBlockThirdPartyCookiesEnabled();
@@ -967,7 +945,4 @@
     private native String nativeGetSupervisedUserSecondCustodianName();
     private native String nativeGetSupervisedUserSecondCustodianEmail();
     private native String nativeGetSupervisedUserSecondCustodianProfileImageURL();
-    private native boolean nativeGetMetricsReportingEnabled();
-    private native void nativeSetMetricsReportingEnabled(boolean enabled);
-    private native boolean nativeHasSetMetricsReporting();
 }