build: remove "./cmd/etcd,etcdctl"

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>

build

@@ -10,7 +10,7 @@ if [ ! -z "$FAILPOINTS" ]; then
 fi
 
 # Set GO_LDFLAGS="-s" for building without symbols for debugging.
-GO_LDFLAGS="$GO_LDFLAGS -X ${REPO_PATH}/cmd/vendor/${REPO_PATH}/version.GitSHA=${GIT_SHA}"
+GO_LDFLAGS="$GO_LDFLAGS -X ${REPO_PATH}/version.GitSHA=${GIT_SHA}"
 
 # enable/disable failpoints
 toggle_failpoints() {
@@ -36,31 +36,14 @@ etcd_build() {
 	# Static compilation is useful when etcd is run in a container. $GO_BUILD_FLAGS is OK
 
 	# shellcheck disable=SC2086
-	CGO_ENABLED=0 go build $GO_BUILD_FLAGS -installsuffix cgo -ldflags "$GO_LDFLAGS" -o "${out}/etcd" ${REPO_PATH}/cmd/etcd || return
+	CGO_ENABLED=0 go build $GO_BUILD_FLAGS -installsuffix cgo -ldflags "$GO_LDFLAGS" -o "${out}/etcd" . || return
 	# shellcheck disable=SC2086
-	CGO_ENABLED=0 go build $GO_BUILD_FLAGS -installsuffix cgo -ldflags "$GO_LDFLAGS" -o "${out}/etcdctl" ${REPO_PATH}/cmd/etcdctl || return
-}
-
-etcd_setup_gopath() {
-	d=$(dirname "$0")
-	CDIR=$(cd "$d" && pwd)
-	cd "$CDIR"
-	etcdGOPATH="${CDIR}/gopath"
-	# preserve old gopath to support building with unvendored tooling deps (e.g., gofail)
-	if [ -n "$GOPATH" ]; then
-		GOPATH=":$GOPATH"
-	fi
-	export GOPATH=${etcdGOPATH}$GOPATH
-	rm -rf "${etcdGOPATH}/src"
-	mkdir -p "${etcdGOPATH}"
-	ln -s "${CDIR}/cmd/vendor" "${etcdGOPATH}/src"
+	CGO_ENABLED=0 go build $GO_BUILD_FLAGS -installsuffix cgo -ldflags "$GO_LDFLAGS" -o "${out}/etcdctl" ./etcdctl || return
 }
 
 toggle_failpoints_default
 
 # only build when called directly, not sourced
 if echo "$0" | grep "build$" >/dev/null; then
-	# force new gopath so builds outside of gopath work
-	etcd_setup_gopath
 	etcd_build
 fi