Tools makefile: remove unrelated clean commands

tools/Makefile

@@ -3,27 +3,6 @@ all: tunslip6
 CFLAGS += -Wall -Werror
 
 tunslip6: tools-utils.c tunslip6.c
+
 clean:
 	rm -f *.o tunslip6
-
-gitclean:
-	@git clean -d -x -n ..
-	@echo "Enter yes to delete these files";
-	@read response;if [[ "$$response" = "yes" ]]; then git clean -d -f -x ..;fi;
-	
-distclean: cleanobj cleanfiles cleantargets cleandone
-cleanobj:
-	${info Removing obj_* directories...}
-	@find ../examples/ -name "obj_*" -print -exec rm -R '{}' +
-cleanfiles:
-	${info Removing .map, .co, .ce, contiki*.a files...}
-	@find ../examples -name "*.map" -print -delete
-	@find ../examples -name "*.co" -print -delete
-	@find ../examples -name "*.ce" -print -delete
-	@find ../examples -name "contiki-*.a" -delete 
-cleantargets:
-	${info Removing .TARGET builds...}
-	@rm -f -v ${addprefix ../examples/*/*., ${shell ls ../arch/platform/}}
-	@rm -f -v ${addprefix ../examples/*/*/*., ${shell ls ../arch/platform/}}
-cleandone:
-	@echo ${info All done!}