ARM: dts: imx25-pinfunc: remove duplicate definition

This was introduced in commit 18e2b504 ("ARM: dts: imx25-pinfunc:
more defines").
Signed-off-by: NUwe Kleine-König <uwe@kleine-koenig.org>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx25-pinfunc.h

@@ -68,7 +68,6 @@
 
 #define MX25_PAD_A22__A22			0x030 0x000 0x000 0x00 0x000
 #define MX25_PAD_A22__GPIO_2_8			0x030 0x000 0x000 0x05 0x000
-#define MX25_PAD_A22__FEC_TDATA2		0x030 0x000 0x000 0x07 0x000
 #define MX25_PAD_A22__SIM2_VEN1			0x030 0x000 0x000 0x06 0x000
 #define MX25_PAD_A22__FEC_TDATA2		0x030 0x000 0x000 0x07 0x000