ppc: Remove T4160RDB board

This board has not been converted to CONFIG_DM_PCI by the deadline and is
also missing conversion to CONFIG_DM.  Remove it.  As this is the last
ARCH_T4160 platform, remove that support as well.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c
index 7d168e3..3f2fc06 100644
--- a/arch/powerpc/cpu/mpc85xx/fdt.c
+++ b/arch/powerpc/cpu/mpc85xx/fdt.c
@@ -527,8 +527,7 @@
 #define fdt_fixup_usb(x)
 #endif
 
-#if defined(CONFIG_ARCH_T2080) || defined(CONFIG_ARCH_T4240) || \
-	defined(CONFIG_ARCH_T4160)
+#if defined(CONFIG_ARCH_T2080) || defined(CONFIG_ARCH_T4240)
 void fdt_fixup_dma3(void *blob)
 {
 	/* the 3rd DMA is not functional if SRIO2 is chosen */
@@ -545,7 +544,7 @@
 	case 0x29:
 	case 0x2d:
 	case 0x2e:
-#elif defined(CONFIG_ARCH_T4240) || defined(CONFIG_ARCH_T4160)
+#elif defined(CONFIG_ARCH_T4240)
 	u32 srds_prtcl_s4 = in_be32(&gur->rcwsr[4]) &
 				    FSL_CORENET2_RCWSR4_SRDS4_PRTCL;
 	srds_prtcl_s4 >>= FSL_CORENET2_RCWSR4_SRDS4_PRTCL_SHIFT;