Merge ReactMethod and ReactSyncHook

Reviewed By: astreet

Differential Revision: D4409726

fbshipit-source-id: 7a0091da754b114680772aa9c0a898b1aa721ba5

ReactAndroid/src/main/java/com/facebook/react/bridge/NativeModule.java

@@ -24,13 +24,6 @@ public interface NativeModule {
     String getType();
   }
 
-  /**
-   * A method that can be called from JS synchronously on the JS thread and return a result.
-   * @see ReactSyncHook
-   */
-  interface SyncNativeHook {
-  }
-
   /**
    * @return the name of this module. This will be the name used to {@code require()} this module
    * from javascript.