Remove captcha doubling. Only change now made to v1 captcha is [blank captcha] -> "al pacino".

src/Posting/Captcha.v1.coffee

@@ -106,15 +106,9 @@ Captcha.v1 =
       @count()
       $.set 'captchas', @captchas
     else
-      challenge   = @nodes.img.alt
-      if response = @nodes.input.value
-        if Conf['Auto-load captcha'] then @reload() else @destroy()
-    # Duplicate one-word captchas.
-    # Don't duplicate street numbers for now (needs testing).
-    if !response
-      response = 'al pacino'
-    else if !/\s|^\d$/.test response
-      response = "#{response} #{response}"
+      challenge = @nodes.img.alt
+      response = @nodes.input.value or 'al pacino'
+      if Conf['Auto-load captcha'] then @reload() else @destroy()
     {challenge, response}
 
   save: ->