remove unneccessary arm* makefiles

Author: fschloesser

make/make.darwin.arm64.gnu

@@ -30,7 +30,8 @@ ARCH		:=	$(shell uname -m | \
 			-e 's/9000..../hppa/' \
 			-e 's/Power\ Macintosh/ppc/' \
 			-e 's/00........../pwr4/'\
-			-e 's/arm.*/arm/')
+			-e 's/arm.*/arm/' \
+			-e 's/aarch64/arm/')
 OSTYPE		:=	$(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 			sed \
 			-e 's/cygwin.*/cygwin/' \