Reverse multi-module changes (#284)

Author: morphar

Makefile

@@ -4,14 +4,8 @@ all:
 	go get ./...
 	go install ./...
 	cd extensions/sample; make
-	for CMD in `ls cmd` ; do (cd ./cmd/$$CMD; echo "install $$CMD"; go install ./...); done
 
 test:
 	# since some tests call separately-built binaries, clear the cache to ensure all get run
 	go clean -testcache
 	go test ./... -v
-	for CMD in `ls cmd` ; do (cd ./cmd/$$CMD; echo "test $$CMD"; go test ./... -v); done
-
-tidy:
-	go mod tidy
-	for CMD in `ls cmd` ; do (cd ./cmd/$$CMD; echo "tidy $$CMD"; go mod tidy); done