Revert "Better detection of when the captcha is open."

This reverts commit 7f32648ed0e837c0adb44e08527837e606526470.

src/Posting/QR.captcha.coffee

@@ -30,19 +30,15 @@ QR.captcha =
   shouldFocus: false
   timeouts: {}
 
-  occupied: ->
-    {container} = @nodes
-    (container.firstChild or container.dataset.widgetID) and !@timeouts.destroy
-
   needed: ->
     captchaCount = @captchas.length
-    captchaCount++ if @occupied()
+    captchaCount++ if @nodes.container.dataset.widgetID and !@timeouts.destroy
     postsCount = QR.posts.length
     postsCount = 0 if postsCount is 1 and !Conf['Auto-load captcha'] and !QR.posts[0].com and !QR.posts[0].file
     captchaCount < postsCount
 
   toggle: ->
-    if @occupied()
+    if @nodes.container.dataset.widgetID and !@timeouts.destroy
       @destroy()
     else
       @shouldFocus = true
@@ -55,7 +51,7 @@ QR.captcha =
       clearTimeout @timeouts.destroy
       delete @timeouts.destroy
       return @reload()
-    return if @occupied()
+    return if @nodes.container.dataset.widgetID
     $.globalEval '''
       (function() {
         var container = document.querySelector("#qr .captcha-container");