chore: simplify SandboxLog.h platform preprocessor guards

Author: CAMOBAP

packages/react-native-sandbox/cxx/SandboxLog.h

@@ -1,17 +1,8 @@
 #pragma once
 
-#include <string>
-
-#ifdef __APPLE__
-#ifdef __OBJC__
+#if defined(__APPLE__) && defined(__OBJC__)
 #import <React/RCTLog.h>
 #define SANDBOX_LOG_WARN(fmt, ...) RCTLogWarn(@fmt, ##__VA_ARGS__)
-#else
-// C++ context on Apple — use stderr as fallback
-#include <cstdio>
-#define SANDBOX_LOG_WARN(fmt, ...) \
-  fprintf(stderr, "[SandboxWarn] " fmt "\n", ##__VA_ARGS__)
-#endif
 #elif defined(__ANDROID__)
 #include <android/log.h>
 #define SANDBOX_LOG_WARN(fmt, ...) \