Fix logger initialization: remove unnecessary line and ensure proper return of logger structure.

src/logger.c

@@ -15,6 +15,8 @@ Logger *initLogger(const char *_filename)
         return NULL;
     }
     pthread_mutex_init(&logger_struct->lock, NULL);
+
+    return logger_struct;
 }
 
 int logErrorEvent(Logger *_logger, const char *_message)