ARM: dts: TS-4800: drop uart rts/cts pin reservations

These pins are actually not routed for UARTs, they should not be
reserved.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx51-ts4800.dts

@@ -157,8 +157,6 @@ pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX51_PAD_UART1_RXD__UART1_RXD		0x1c5
 			MX51_PAD_UART1_TXD__UART1_TXD		0x1c5
-			MX51_PAD_UART1_RTS__UART1_RTS		0x1c5
-			MX51_PAD_UART1_CTS__UART1_CTS		0x1c5
 		>;
 	};
 
@@ -173,8 +171,6 @@ pinctrl_uart3: uart3grp {
 		fsl,pins = <
 			MX51_PAD_EIM_D25__UART3_RXD		0x1c5
 			MX51_PAD_EIM_D26__UART3_TXD		0x1c5
-			MX51_PAD_EIM_D27__UART3_RTS		0x1c5
-			MX51_PAD_EIM_D24__UART3_CTS		0x1c5
 		>;
 	};
 };