remove redundant tag (#25)

gengjiawen · web-flow · commit a84eca20a3f4 · 2018-12-24T21:25:01.000+08:00
Signed-off-by: gengjiawen &lt;technicalcute@gmail.com&gt;
diff --git a/Dockerfile b/Dockerfile
@@ -9,7 +9,6 @@ ARG ANDROID_BUILD_VERSION=28
 ARG ANDROID_TOOLS_VERSION=28.0.2
 ARG BUCK_VERSION=2018.10.29.01
 ARG NDK_VERSION=17c
-ARG NODE_VERSION=lts
 ARG WATCHMAN_VERSION=4.9.0
 
 # set default environment variables
