fix: remove deprecated event listener method from appearance.js

Libraries/Utilities/Appearance.js

@@ -30,12 +30,11 @@ type NativeAppearanceEventDefinitions = {
 };
 
 if (NativeAppearance) {
-  const nativeEventEmitter =
-    new NativeEventEmitter<NativeAppearanceEventDefinitions>(
-      // T88715063: NativeEventEmitter only used this parameter on iOS. Now it uses it on all platforms, so this code was modified automatically to preserve its behavior
-      // If you want to use the native module on other platforms, please remove this condition and test its behavior
-      Platform.OS !== 'ios' ? null : NativeAppearance,
-    );
+  const nativeEventEmitter = new NativeEventEmitter<NativeAppearanceEventDefinitions>(
+    // T88715063: NativeEventEmitter only used this parameter on iOS. Now it uses it on all platforms, so this code was modified automatically to preserve its behavior
+    // If you want to use the native module on other platforms, please remove this condition and test its behavior
+    Platform.OS !== 'ios' ? null : NativeAppearance,
+  );
   nativeEventEmitter.addListener(
     'appearanceChanged',
     (newAppearance: AppearancePreferences) => {
@@ -91,12 +90,4 @@ module.exports = {
   addChangeListener(listener: AppearanceListener): EventSubscription {
     return eventEmitter.addListener('change', listener);
   },
-
-  /**
-   * @deprecated Use `remove` on the EventSubscription from `addEventListener`.
-   */
-  removeChangeListener(listener: AppearanceListener): void {
-    // NOTE: This will report a deprecation notice via `console.error`.
-    eventEmitter.removeListener('change', listener);
-  },
 };