mpc5xxx: Remove all references to MGT5100

We do not support a processor that never reached a real customer.

Signed-off-by: Detlev Zundel <dzu@denx.de>
diff --git a/cpu/mpc5xxx/Makefile b/cpu/mpc5xxx/Makefile
index 06fdbcf..0ee0611 100644
--- a/cpu/mpc5xxx/Makefile
+++ b/cpu/mpc5xxx/Makefile
@@ -26,7 +26,7 @@
 LIB	= $(obj)lib$(CPU).a
 
 START	= start.o
-SOBJS	= io.o firmware_sc_task_bestcomm.impl.o firmware_sc_task.impl.o
+SOBJS	= io.o firmware_sc_task_bestcomm.impl.o
 COBJS	= i2c.o traps.o cpu.o cpu_init.o ide.o interrupts.o \
 	  loadtask.o pci_mpc5200.o serial.o speed.o usb_ohci.o usb.o