Remove (embed) links from quotes.

src/Posting/QR.coffee

@@ -233,6 +233,9 @@ QR =
         $.replace node, [$.tn('[spoiler]'), node.childNodes..., $.tn '[/spoiler]']
       for node in $$ '.prettyprint', frag
         $.replace node, [$.tn('[code]'), node.childNodes..., $.tn '[/code]']
+      for node in $$ '.embedder', frag
+        $.rm node.previousSibling if node.previousSibling?.nodeValue is ' '
+        $.rm node
       text += ">#{frag.textContent.trim()}\n"
 
     QR.open()