Fix lints and clean up interfaces

Summary:
quick diff to fix lints and clean-up interfaces in com.facebook.react.uimanager

changelog: [internal] internal

Reviewed By: NickGerleman

Differential Revision: D41382839

fbshipit-source-id: 7c28fb7b0120e13e6a601c96a58b144161f64d5f

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

@@ -16,5 +16,5 @@ public interface IViewManagerWithChildren {
    * of automatically laying out children without going through the ViewGroup's onLayout method. In
    * that case, onLayout for this View type must *not* call layout on its children.
    */
-  public boolean needsCustomLayoutForChildren();
+  boolean needsCustomLayoutForChildren();
 }