Remove Fabric android implementation

Summary: This diff removes the Fabric Android implementation in favor of Fabric C++, as part of another diff I'm going to move the fabricxx package into fabric package

Reviewed By: shergin

Differential Revision: D9841240

fbshipit-source-id: c7922b7bfb9885f33b1f52237ec7cf00c1df96fb

ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactShadowNode.java

@@ -68,17 +68,6 @@ public interface ReactShadowNode<T extends ReactShadowNode> {
    */
   boolean isYogaLeafNode();
 
-  /**
-   * @return a mutable copy of the {@link ReactShadowNode}
-   */
-  T mutableCopy(long instanceHandle);
-
-  T mutableCopyWithNewProps(long instanceHandle, @Nullable ReactStylesDiffMap newProps);
-
-  T mutableCopyWithNewChildren(long instanceHandle);
-
-  T mutableCopyWithNewChildrenAndProps(long instanceHandle, @Nullable ReactStylesDiffMap newProps);
-
   String getViewClass();
 
   boolean hasUpdates();
@@ -366,28 +355,5 @@ public interface ReactShadowNode<T extends ReactShadowNode> {
    */
   List<ReactShadowNode> getChildrenList();
 
-  /**
-   * @return the {@link ReactShadowNode} that was used during the cloning mechanism to create
-   * this {@link ReactShadowNode} or null if this object was not created using a clone operation.
-   */
-  @Nullable ReactShadowNode getOriginalReactShadowNode();
-
-  void setOriginalReactShadowNode(@Nullable ReactShadowNode node);
-
-  long getInstanceHandle();
-
-  void setInstanceHandle(long instanceHandle);
-
-  /**
-   * Mark this {@link ReactShadowNode} as sealed. This means that the node was already committed
-   * and it should not be updated anymore.
-   */
-  void markAsSealed();
-
-  /**
-   * @return a {@link boolean} that represents if the {@link ReactShadowNode} is sealed.
-   */
-  boolean isSealed();
-
   void updateScreenLayout(ReactShadowNode prevNode);
 }