manager: Strip JNI debug logs on release build (#2732)

Add conditional logging to jni.c for debug builds.

manager/app/src/main/cpp/prelude.h

@@ -61,6 +61,10 @@
     GetEnvironment()->NewObject(env, cls, constructor, __VA_ARGS__); \
 })
 
+#ifdef NDEBUG
+#define LogDebug(...) (void)0
+#else
 #define LogDebug(...) __android_log_print(ANDROID_LOG_DEBUG, "KernelSU", __VA_ARGS__)
+#endif
 
 #endif