chore(go-dev): use unuse replace deadcode

Author: duanhongyi

rootfs/usr/local/bin/lint

@@ -6,7 +6,7 @@ mandatory=$?
 echo -e "\033[0;31mManadatory Linters: These must pass\033[0m"
 golangci-lint --disable-all \
   -E=misspell \
-  -E=deadcode \
+  -E=unused \
   -E=ineffassign \
   -E=gosimple \
   -E=vet \