Removed unused container_install var

luasrc/view/nodered/status.htm

@@ -1,7 +1,6 @@
 <%
 local util  = require "luci.util"
 local container_status = util.trim(util.exec("/usr/libexec/apps/nodered/nodered.sh status"))
-local container_install = (string.len(container_status) > 0)
 local container_running = string.find(string.lower(container_status), "up") and string.find(string.lower(container_status), "(healthy)")
 -%>
 
@@ -17,7 +16,7 @@ local container_running = string.find(string.lower(container_status), "up") and
 </div>
 
 <%
-if container_install then
+if container_running then
     local port=util.trim(util.exec("/usr/libexec/apps/nodered/nodered.sh port"))
     if port == "" then
         port="1880"