fixing build break by removing unused imports.
diff --git a/core/java/android/webkit/WebViewCore.java b/core/java/android/webkit/WebViewCore.java
index 4602fa8..885dda9 100644
--- a/core/java/android/webkit/WebViewCore.java
+++ b/core/java/android/webkit/WebViewCore.java
@@ -41,8 +41,6 @@
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
-import android.webkit.plugin.SurfaceDrawingModel;
-import android.webkit.plugin.WebkitPlugin;
import java.util.ArrayList;
import java.util.Collection;