Remove dead code in AwContents.

android_webview/java/src/org/chromium/android_webview/AwContents.java

Index: android_webview/java/src/org/chromium/android_webview/AwContents.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwContents.java b/android_webview/java/src/org/chromium/android_webview/AwContents.java
index ec2b9000916f8da85d2e353a16f48a6e4c664b7d..3ee10deafe17e003768787f98b007027fe113eda 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -1601,9 +1601,6 @@ public class AwContents implements SmartClipProvider {
         if (!isDestroyed()) mNavigationController.clearSslPreferences();
     }
 
-    // TODO(sgurun) remove after this rolls in. To keep internal tree happy.
-    public void clearClientCertPreferences() { }
-
     /**
      * Method to return all hit test values relevant to public WebView API.
      * Note that this expose more data than needed for WebView.getHitTestResult.