ui: Remove unneeded RegisterNatives() call on Android

ui/gfx/android/java_bitmap.h

Index: ui/gfx/android/java_bitmap.h
diff --git a/ui/gfx/android/java_bitmap.h b/ui/gfx/android/java_bitmap.h
index 97f85d407304f76898edd61f3bb78d458e1a9d84..27826f809271a153b1ca6bf76044365547b6e7b3 100644
--- a/ui/gfx/android/java_bitmap.h
+++ b/ui/gfx/android/java_bitmap.h
@@ -41,9 +41,6 @@ class GFX_EXPORT JavaBitmap {
   inline uint32_t stride() const { return stride_; }
   inline int byte_count() const { return byte_count_; }
 
-  // Registers methods with JNI and returns true if succeeded.
-  static bool RegisterJavaBitmap(JNIEnv* env);
-
  private:
   jobject bitmap_;
   void* pixels_;