Remove unnecessary flags (#145)

Signed-off-by: Arrobo, Gabriel <[email protected]>

Makefile

@@ -39,10 +39,6 @@ VERSION = $(shell git describe --tags)
 BUILD_TIME = $(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
 COMMIT_HASH = $(shell git submodule status | grep $(GO_SRC_PATH)/$(@F) | awk '{print $$(1)}' | cut -c1-8)
 COMMIT_TIME = $(shell cd $(GO_SRC_PATH) && git log --pretty="%ai" -1 | awk '{time=$$(1)"T"$$(2)"Z"; print time}')
-LDFLAGS = -X github.com/free5gc/version.VERSION=$(VERSION) \
-          -X github.com/free5gc/version.BUILD_TIME=$(BUILD_TIME) \
-          -X github.com/free5gc/version.COMMIT_HASH=$(COMMIT_HASH) \
-          -X github.com/free5gc/version.COMMIT_TIME=$(COMMIT_TIME)
 
 .PHONY: $(NF) clean docker-build docker-push
 
@@ -58,7 +54,7 @@ $(GO_BIN_PATH)/%: %.go $(NF_GO_FILES)
 # $(@F): The file-within-directory part of the file name of the target.
 	@echo "Start building $(@F)...."
 	cd $(GO_SRC_PATH)/ && \
-	CGO_ENABLED=0 go build -ldflags "$(LDFLAGS)" -o $(ROOT_PATH)/$@ $(@F).go
+	CGO_ENABLED=0 go build -o $(ROOT_PATH)/$@ $(@F).go
 
 .coverage:
 	rm -rf $(CURDIR)/.coverage