Delete isWebApkInstalled in ShortcutHelper.java to minimize JNI usage.

chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java b/chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java
index 3a7d1b83beb75bb5dd7e7c310c3b7a8aa10ba6d1..258b46df9a97b07771bc86ada700539ba047ba5f 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ShortcutHelper.java
@@ -465,15 +465,6 @@ public class ShortcutHelper {
     }
 
     /**
-     * Returns true if WebAPKs are enabled and there is an installed WebAPK which can handle
-     * {@link url}.
-     */
-    @CalledByNative
-    private static boolean isWebApkInstalled(String url) {
-        return queryWebApkPackage(url) != null;
-    }
-
-    /**
      * Compresses a bitmap into a PNG and converts into a Base64 encoded string.
      * The encoded string can be decoded using {@link decodeBitmapFromString(String)}.
      * @param bitmap The Bitmap to compress and encode.