drivers/staging:remove ksu from source

As per yaap rules

Author: kondors1995

drivers/Kconfig

@@ -233,6 +233,4 @@ source "drivers/trusty/Kconfig"
 
 source "techpack/data/drivers/Kconfig"
 
-source "drivers/kernelsu/Kconfig"
-
 endmenu

drivers/input/input.c

@@ -455,21 +455,11 @@ static int input_get_disposition(struct input_dev *dev,
 	return disposition;
 }
 
-#ifdef CONFIG_KSU
-extern bool ksu_input_hook __read_mostly;
-extern int ksu_handle_input_handle_event(unsigned int *type, unsigned int *code, int *value);
-#endif
-
 static void input_handle_event(struct input_dev *dev,
 			       unsigned int type, unsigned int code, int value)
 {
 	int disposition = input_get_disposition(dev, type, code, &value);
 
-#ifdef CONFIG_KSU
-	if (unlikely(ksu_input_hook))
-		ksu_handle_input_handle_event(&type, &code, &value);
-#endif
-
 	if (disposition != INPUT_IGNORE_EVENT && type != EV_SYN)
 		add_input_randomness(type, code, value);