Remove the system api method WebViewFactory.getWebViewPackageName

We no longer user this method and it doesn't return any useful
information.

Bug: 27719581

Change-Id: Id282f1501cde9a7d7cc1fe66016cfb54956686c5
diff --git a/api/system-current.txt b/api/system-current.txt
index 99a4ad3..eff0660 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -48672,7 +48672,6 @@
   public final class WebViewFactory {
     ctor public WebViewFactory();
     method public static android.content.pm.PackageInfo getLoadedPackageInfo();
-    method public static java.lang.String getWebViewPackageName();
     method public static int loadWebViewNativeLibraryFromPackage(java.lang.String, java.lang.ClassLoader);
     method public static void prepareWebViewInZygote();
     field public static final java.lang.String CHROMIUM_WEBVIEW_VMSIZE_SIZE_PROPERTY = "persist.sys.webview.vmsize";
diff --git a/core/java/android/webkit/WebViewFactory.java b/core/java/android/webkit/WebViewFactory.java
index f1bf890..d884f19 100644
--- a/core/java/android/webkit/WebViewFactory.java
+++ b/core/java/android/webkit/WebViewFactory.java
@@ -128,11 +128,6 @@
         public MissingWebViewPackageException(Exception e) { super(e); }
     }
 
-    // TODO (gsennton) remove when committing webview xts test change
-    public static String getWebViewPackageName() {
-        return null;
-    }
-
     /**
      * @hide
      */