powerpc/cpm: Remove duplicate FCC_GFMR_TTX define

The FCC_GFMR_TTX define is cut and pasted twice so we can remove the
second instance.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/cpm2.h

@@ -489,7 +489,6 @@ typedef struct scc_trans {
 #define FCC_GFMR_TCI		((uint)0x20000000)
 #define FCC_GFMR_TRX		((uint)0x10000000)
 #define FCC_GFMR_TTX		((uint)0x08000000)
-#define FCC_GFMR_TTX		((uint)0x08000000)
 #define FCC_GFMR_CDP		((uint)0x04000000)
 #define FCC_GFMR_CTSP		((uint)0x02000000)
 #define FCC_GFMR_CDS		((uint)0x01000000)