ppc: Remove MPC8569MDS board

This board has not been converted to CONFIG_DM_MMC by the deadline.
Remove it.  As this is the last ARCH_MPC8569 board, remove that support
as well.

Cc: Priyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c
index 09653c7..9c89ce5 100644
--- a/arch/powerpc/cpu/mpc85xx/speed.c
+++ b/arch/powerpc/cpu/mpc85xx/speed.c
@@ -630,7 +630,7 @@
 	gd->arch.i2c2_clk = gd->arch.i2c1_clk;
 
 #if defined(CONFIG_FSL_ESDHC)
-#if defined(CONFIG_ARCH_MPC8569) || defined(CONFIG_ARCH_P1010)
+#if defined(CONFIG_ARCH_P1010)
 	gd->arch.sdhc_clk = gd->bus_clk;
 #else
 	gd->arch.sdhc_clk = gd->bus_clk / 2;