* some minor Makefile cleanup

Makefile.modules

@@ -19,17 +19,15 @@ ifeq ($(CPU),stm32f407vgt6)
 	USEMODULE += stm32f4xxstdperi
 	UNDEF += $(BINDIR)syscalls.o
 endif
-ifeq ($(CPU),msp430x16x)
-  USEMODULE += msp430_common
-endif
 
-#USEMODULE += cpu_drivers cpu core lib sys
 USEMODULE += cpu core sys
 ED = $(USEMODULE:%=-DMODULE_%)
 EXTDEFINES = $(shell echo $(ED)|tr 'a-z' 'A-Z')
 BL=$(USEMODULE:%= $(BINDIR)%.a)
+
 # exclude hwtimer, because it is part of the kernel but the define is needed for auto_init
 export BASELIBS = $(shell echo $(BL)|sed 's/[^ ]*hwtimer.a//')
+
 CFLAGS += $(EXTDEFINES)
 
 include $(RIOTBASE)/Makefile.dep