Drop RCT_EXPORT_METHOD from RCTDevToolsRuntimeSettingsModule TurboModule

Summary:
Changelog: [Internal]

`RCTDevToolsRuntimeSettingsModule` is a TurboModule: it conforms to `NativeReactDevToolsRuntimeSettingsModuleSpec` and implements `getTurboModule:` returning the codegen'd `...SpecJSI`. For TurboModules, the JS->ObjC dispatch is driven by codegen (the generated spec supplies the `selector` and argument kinds, invoked at runtime via `NSMethodSignature` / `NSInvocation`), not by the `RCT_EXPORT_METHOD` macro's `__rct_export__` metadata.

The exported methods here are async-void with concrete parameter types (no generic `id` requiring `RCTConvert` coercion), so the macro is not functionally required. Convert them to plain ObjC method declarations; conformance to the codegen'd `NativeReactDevToolsRuntimeSettingsModuleSpec` protocol keeps compiler-enforced signature parity.

Signature-only refactor with no change to the JS-facing API. Sync methods, methods with `id` params, and `constantsToExport` are intentionally left untouched.

Differential Revision: D113579881

Author: christophpurrer

packages/react-native/React/CoreModules/RCTDevToolsRuntimeSettingsModule.mm

@@ -25,8 +25,7 @@ @interface RCTDevToolsRuntimeSettingsModule () <NativeReactDevToolsRuntimeSettin
 @implementation RCTDevToolsRuntimeSettingsModule
 RCT_EXPORT_MODULE(ReactDevToolsRuntimeSettingsModule)
 
-RCT_EXPORT_METHOD(
-    setReloadAndProfileConfig : (JS::NativeReactDevToolsRuntimeSettingsModule::PartialReloadAndProfileConfig &)config)
+- (void)setReloadAndProfileConfig:(JS::NativeReactDevToolsRuntimeSettingsModule::PartialReloadAndProfileConfig &)config
 {
   if (config.shouldReloadAndProfile().has_value()) {
     _config.shouldReloadAndProfile = config.shouldReloadAndProfile().value();