kernel: Replace ksu_access_ok with macro

Signed-off-by: rsuntk <rissu.ntk@gmail.com>

kernel/kernel_compat.c

@@ -178,12 +178,3 @@ long ksu_strncpy_from_user_nofault(char *dst, const void __user *unsafe_addr,
 	return ret;
 }
 #endif
-
-int ksu_access_ok(const void *addr, unsigned long size)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)
-	return access_ok(addr, size);
-#else
-	return access_ok(VERIFY_READ, addr, size);
-#endif
-}