Clean up dtors in LayoutAnimations

Summary:
changelog: [internal]

Clean up destructors for classes in LayoutAnimations module.

Reviewed By: RSNara

Differential Revision: D30728212

fbshipit-source-id: 612afb8ebf1407318d22fc461fcc7e03a2b72c47

ReactCommon/react/renderer/animations/LayoutAnimationDriver.h

@@ -21,8 +21,6 @@ class LayoutAnimationDriver : public LayoutAnimationKeyFrameManager {
       LayoutAnimationStatusDelegate *delegate)
       : LayoutAnimationKeyFrameManager(runtimeExecutor, delegate) {}
 
-  virtual ~LayoutAnimationDriver() {}
-
  protected:
   virtual void animationMutationsForFrame(
       SurfaceId surfaceId,

ReactCommon/react/renderer/animations/LayoutAnimationKeyFrameManager.h

@@ -50,7 +50,6 @@ class LayoutAnimationKeyFrameManager : public UIManagerAnimationDelegate,
                          .time_since_epoch())
               .count();
         }) {}
-  ~LayoutAnimationKeyFrameManager() {}
 
 #pragma mark UIManagerAnimationDelegate methods
 

ReactCommon/react/renderer/mounting/MountingOverrideDelegate.h

@@ -22,7 +22,7 @@ class MountingCoordinator;
 class MountingOverrideDelegate {
  public:
   virtual bool shouldOverridePullTransaction() const = 0;
-  virtual ~MountingOverrideDelegate(){};
+  virtual ~MountingOverrideDelegate() = default;
 
   /**
    * Delegates that override this method are responsible for:

ReactCommon/react/renderer/uimanager/UIManagerAnimationDelegate.h

@@ -16,7 +16,7 @@ namespace facebook::react {
 
 class UIManagerAnimationDelegate {
  public:
-  virtual ~UIManagerAnimationDelegate(){};
+  virtual ~UIManagerAnimationDelegate() = default;
 
   /*
    * Configure a LayoutAnimation.