dm: serial: Remove setparity ops

setparity users has been updated to use new setconfig ops,
so we can safely remove setparity ops

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

include/serial.h

@@ -182,16 +182,6 @@ struct dm_serial_ops {
 	 */
 	int (*loop)(struct udevice *dev, int on);
 #endif
-	/**
-	 * setparity() - Set up the parity
-	 *
-	 * Set up a new parity for this device.
-	 *
-	 * @dev: Device pointer
-	 * @parity: parity to use
-	 * @return 0 if OK, -ve on error
-	 */
-	int (*setparity)(struct udevice *dev, enum serial_par parity);
 
 	/**
 	 * setconfig() - Set up the uart configuration