fix: "linux/input.h" file not found on FreeBSD

Author: lc-soft

src/platform/linux/linux_mouse.c

@@ -38,7 +38,6 @@
 #include <sys/time.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <linux/input.h>
 
 #include <LCUI/LCUI.h>
 #include <LCUI/thread.h>