delete unused RCTSurfaceHostingView selectors (#38869)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/38869

## Changelog:

[iOS][Breaking]- After [#38866](https://github.com/facebook/react-native/pull/38866) and [#38868](https://github.com/facebook/react-native/pull/38868), these are not needed anymore. instead of depending on the host view and overriding `createSurfaceWithBridge:` in a subclass create a specialized surface, we just rely on composition instead and provide a surface to the hosting view.

Reviewed By: mdvacca, cipolleschi

Differential Revision: D48140317

fbshipit-source-id: 930c79b3828e0197c5dd2841875b830fc211e2a6

packages/react-native/React/Base/Surface/SurfaceHostingView/RCTSurfaceHostingView.h

@@ -27,13 +27,6 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @interface RCTSurfaceHostingView : UIView <RCTSurfaceDelegate>
 
-/**
- * Create an instance of RCTSurface to be hosted.
- */
-+ (RCTSurface *)createSurfaceWithBridge:(RCTBridge *)bridge
-                             moduleName:(NSString *)moduleName
-                      initialProperties:(NSDictionary *)initialProperties;
-
 /**
  * Designated initializer.
  * Instantiates a view with given Surface object.
@@ -42,16 +35,6 @@ NS_ASSUME_NONNULL_BEGIN
 - (instancetype)initWithSurface:(id<RCTSurfaceProtocol>)surface
                 sizeMeasureMode:(RCTSurfaceSizeMeasureMode)sizeMeasureMode NS_DESIGNATED_INITIALIZER;
 
-/**
- * Convenience initializer.
- * Instantiates a Surface object with given `bridge`, `moduleName`, and
- * `initialProperties`, and then use it to instantiate a view.
- */
-- (instancetype)initWithBridge:(RCTBridge *)bridge
-                    moduleName:(NSString *)moduleName
-             initialProperties:(NSDictionary *)initialProperties
-               sizeMeasureMode:(RCTSurfaceSizeMeasureMode)sizeMeasureMode;
-
 /**
  * Surface object which is currently using to power the view.
  * Read-only.

packages/react-native/React/Base/Surface/SurfaceHostingView/RCTSurfaceHostingView.mm

@@ -26,31 +26,10 @@
   RCTSurfaceStage _stage;
 }
 
-+ (id<RCTSurfaceProtocol>)createSurfaceWithBridge:(RCTBridge *)bridge
-                                       moduleName:(NSString *)moduleName
-                                initialProperties:(NSDictionary *)initialProperties
-{
-  return [[RCTSurface alloc] initWithBridge:bridge moduleName:moduleName initialProperties:initialProperties];
-}
-
 RCT_NOT_IMPLEMENTED(-(instancetype)init)
 RCT_NOT_IMPLEMENTED(-(instancetype)initWithFrame : (CGRect)frame)
 RCT_NOT_IMPLEMENTED(-(nullable instancetype)initWithCoder : (NSCoder *)coder)
 
-- (instancetype)initWithBridge:(RCTBridge *)bridge
-                    moduleName:(NSString *)moduleName
-             initialProperties:(NSDictionary *)initialProperties
-               sizeMeasureMode:(RCTSurfaceSizeMeasureMode)sizeMeasureMode
-{
-  id<RCTSurfaceProtocol> surface = [[self class] createSurfaceWithBridge:bridge
-                                                              moduleName:moduleName
-                                                       initialProperties:initialProperties];
-  if (self = [self initWithSurface:surface sizeMeasureMode:sizeMeasureMode]) {
-    [surface start];
-  }
-  return self;
-}
-
 - (instancetype)initWithSurface:(id<RCTSurfaceProtocol>)surface
                 sizeMeasureMode:(RCTSurfaceSizeMeasureMode)sizeMeasureMode
 {