Remove unused queryChallenge code.

src/Posting/Captcha.noscript.coffee

@@ -39,27 +39,24 @@ Captcha.noscript =
     @setup()
 
   initFrame: ->
-    img = $ '.fbc-payload > img'
-    cb = ->
-      canvas = $.el 'canvas'
-      canvas.width  = img.width
-      canvas.height = img.height
-      canvas.getContext('2d').drawImage(img, 0, 0)
-      conn.send {challenge: canvas.toDataURL()}
-    sendChallenge = ->
-      if img.complete
-        cb()
-      else
-        $.on img, 'load', cb
     conn = new Connection window.top, "#{location.protocol}//boards.4chan.org",
-      queryChallenge: sendChallenge
       response: (response) ->
         $.id('response').value = response
         $('.fbc-challenge > form').submit()
     conn.send
       token: $('.fbc-verification-token > textarea')?.value
       error: $('.fbc-error')?.textContent
-    sendChallenge() if img
+    return unless img = $ '.fbc-payload > img'
+    cb = ->
+      canvas = $.el 'canvas'
+      canvas.width  = img.width
+      canvas.height = img.height
+      canvas.getContext('2d').drawImage(img, 0, 0)
+      conn.send {challenge: canvas.toDataURL()}
+    if img.complete
+      cb()
+    else
+      $.on img, 'load', cb
 
   timers: {}