Remove useless old Makefile

Makefile

@@ -1,20 +0,0 @@
-MAKEABLE_PACKAGES=\
-	syntax \
-	driver-timer \
-	driver-browser-ui \
-	driver-http-node \
-	driver-websocket \
-	driver-udp-node \
-	syntax-playground
-
-all:
-	for p in $(MAKEABLE_PACKAGES); do $(MAKE) -C packages/$$p; done
-
-clean:
-	for p in $(MAKEABLE_PACKAGES); do $(MAKE) -C packages/$$p clean; done
-
-bootstrap:
-	[ -d node_modules/lerna ] || npm i .
-	npx lerna bootstrap
-
-.PHONY: bootstrap