boards: Remove the unused ARCHCCVERSION and ARCHCCMAJOR

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I22d546693139c59c8c899479887a5f04d65edbd6

boards/arm/stm32f0l0g0/b-l072z-lrwan1/scripts/Make.defs

@@ -55,9 +55,6 @@ NM = $(ARCROSSDEV)nm
 OBJCOPY = $(CROSSDEV)objcopy
 OBJDUMP = $(CROSSDEV)objdump
 
-ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
-ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
-
 ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
   ARCHOPTIMIZATION = -g
 endif