Input: elantech - remove redundant assignments to variable error

The variable error is being initialized with a value that is
never read and it is being updated later with a new value. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20200603140431.131347-1-colin.king@canonical.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/mouse/elantech.c

@@ -1897,7 +1897,7 @@ static bool elantech_use_host_notify(struct psmouse *psmouse,
 int elantech_init_smbus(struct psmouse *psmouse)
 {
 	struct elantech_device_info info;
-	int error = -EINVAL;
+	int error;
 
 	psmouse_reset(psmouse);
 
@@ -2015,7 +2015,7 @@ static int elantech_setup_ps2(struct psmouse *psmouse,
 int elantech_init_ps2(struct psmouse *psmouse)
 {
 	struct elantech_device_info info;
-	int error = -EINVAL;
+	int error;
 
 	psmouse_reset(psmouse);
 
@@ -2036,7 +2036,7 @@ int elantech_init_ps2(struct psmouse *psmouse)
 int elantech_init(struct psmouse *psmouse)
 {
 	struct elantech_device_info info;
-	int error = -EINVAL;
+	int error;
 
 	psmouse_reset(psmouse);