Don't load listener into deployment image

basis/bootstrap/stage2.factor

@@ -67,7 +67,7 @@ SYMBOL: bootstrap-time
     os wince? [ "windows.ce" require ] when
     os winnt? [ "windows.nt" require ] when
 
-    "deploy-vocab" get [
+    "staging" get "deploy-vocab" get or [
         "stage2: deployment mode" print
     ] [
         "listener" require

basis/tools/deploy/backend/backend.factor

@@ -55,6 +55,8 @@ DEFER: ?make-staging-image
 
 : staging-command-line ( profile -- flags )
     [
+        "-staging" ,
+
         dup empty? [
             "-i=" my-boot-image-name append ,
         ] [