cpu/[7a-ln-z]*: Remove obsolete references to CONFIG_COMMANDS

cpu/74xx_7xx/kgdb.S

cpu/74xx_7xx/traps.c

cpu/arm920t/at91rm9200/bcm5221.c

cpu/arm920t/at91rm9200/dm9161.c

cpu/arm920t/at91rm9200/ether.c

cpu/arm920t/at91rm9200/lxt972.c

cpu/i386/serial.c

cpu/ixp/cpu.c

cpu/ixp/npe/npe.c

cpu/nios/interrupts.c

cpu/nios2/interrupts.c

cpu/ppc4xx/4xx_enet.c

cpu/ppc4xx/bedbug_405.c

cpu/ppc4xx/dcr.S

cpu/ppc4xx/interrupts.c

cpu/ppc4xx/kgdb.S

cpu/ppc4xx/ndfc.c

cpu/ppc4xx/serial.c

cpu/ppc4xx/traps.c

cpu/ppc4xx/usbdev.c