USB: serial: cp210x: Removing unncessary `usb_reset_device` on startup

This `usb_reset_device` command has been around since the driver was
originally reverse engineered. It doesn't cause much issue on single
interface CP210x devices, but on the CP2105 and CP2108 with 2 and 4
interfaces respectively it will cause instability on enumeration and
delays enumeration noticably. There should be no reason to reset a device
at startup, per the CP210x AN571 spec.

Signed-off-by: Preston Fick <[e-mail]>
Cc: Johan Hovold <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/serial/cp210x.c

···
 	struct usb_host_interface *cur_altsetting;
 	struct cp210x_serial_private *spriv;
 
-	/* cp210x buffers behave strangely unless device is reset */
-	usb_reset_device(serial->dev);
-
 	spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
 	if (!spriv)
 		return -ENOMEM;