Generalised mounted object and descriptor into offset child

Summary: There are other situations where we want to overide the offset than for litho mounted views

Reviewed By: lblasa

Differential Revision: D40021833

fbshipit-source-id: 1411a4a67e88f6893bb38e36fb6a81eead3edd1a

android/plugins/litho/src/main/java/com/facebook/flipper/plugins/uidebugger/litho/UIDebuggerLithoSupport.kt

@@ -16,7 +16,6 @@ object UIDebuggerLithoSupport {
 
   fun addDescriptors(register: DescriptorRegister) {
     register.register(LithoView::class.java, LithoViewDescriptor)
-    register.register(MountedObject::class.java, MountedObjectDescriptor)
     register.register(DebugComponent::class.java, DebugComponentDescriptor(register))
   }