refactor(ReactNative/Slider): moved iOS sources to internal (react#35365)

Summary:
Pull Request resolved: react#35365

# Changelog:
[iOS][Removed] - removed iOS sources of Slider module

Reviewed By: NickGerleman

Differential Revision: D41069547

fbshipit-source-id: 8faf96701f69e19074fafac45b1c95b939c2b1ac

Author: hoxyq

BUCK

@@ -522,7 +522,6 @@ rn_apple_xplat_cxx_library(
         react_fabric_component_plugin_provider("ScrollView", "RCTScrollViewCls"),
         react_fabric_component_plugin_provider("PullToRefreshView", "RCTPullToRefreshViewCls"),
         react_fabric_component_plugin_provider("ActivityIndicatorView", "RCTActivityIndicatorViewCls"),
-        react_fabric_component_plugin_provider("Slider", "RCTSliderCls"),
         react_fabric_component_plugin_provider("Switch", "RCTSwitchCls"),
         react_fabric_component_plugin_provider("UnimplementedNativeView", "RCTUnimplementedNativeViewCls"),
         react_fabric_component_plugin_provider("Paragraph", "RCTParagraphCls"),

React/Fabric/Mounting/ComponentViews/RCTFabricComponentsPlugins.h

@@ -34,7 +34,6 @@ Class<RCTComponentViewProtocol> RCTSafeAreaViewCls(void) __attribute__((used));
 Class<RCTComponentViewProtocol> RCTScrollViewCls(void) __attribute__((used));
 Class<RCTComponentViewProtocol> RCTPullToRefreshViewCls(void) __attribute__((used));
 Class<RCTComponentViewProtocol> RCTActivityIndicatorViewCls(void) __attribute__((used));
-Class<RCTComponentViewProtocol> RCTSliderCls(void) __attribute__((used));
 Class<RCTComponentViewProtocol> RCTSwitchCls(void) __attribute__((used));
 Class<RCTComponentViewProtocol> RCTUnimplementedNativeViewCls(void) __attribute__((used));
 Class<RCTComponentViewProtocol> RCTParagraphCls(void) __attribute__((used));

React/Fabric/Mounting/ComponentViews/RCTFabricComponentsPlugins.mm

@@ -22,7 +22,6 @@
     {"ScrollView", RCTScrollViewCls},
     {"PullToRefreshView", RCTPullToRefreshViewCls},
     {"ActivityIndicatorView", RCTActivityIndicatorViewCls},
-    {"Slider", RCTSliderCls},
     {"Switch", RCTSwitchCls},
     {"UnimplementedNativeView", RCTUnimplementedNativeViewCls},
     {"Paragraph", RCTParagraphCls},