char/cadence_uart: Delete redundant rx rst logic

uart_rx_reset() called immediately above already does this. Remove.
Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 05e30826496cf2579084ed801ac0b2c0d0a3071f.1388626249.git.peter.crosthwaite@xilinx.com
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

hw/char/cadence_uart.c

@@ -438,8 +438,6 @@ static void cadence_uart_reset(DeviceState *dev)
     uart_rx_reset(s);
     uart_tx_reset(s);
 
-    s->rx_count = 0;
-    s->rx_wpos = 0;
     uart_update_status(s);
 }