morss: drop 'keep' option

Because the Firefox behaviour it is working around is no longer in use

morss/morss.py

@@ -54,7 +54,7 @@ def filterOptions(options):
 
     # example of filtering code below
 
-    #allowed = ['proxy', 'clip', 'keep', 'cache', 'force', 'silent', 'pro', 'debug']
+    #allowed = ['proxy', 'clip', 'cache', 'force', 'silent', 'pro', 'debug']
     #filtered = dict([(key,value) for (key,value) in options.items() if key in allowed])
 
     #return filtered
@@ -288,9 +288,6 @@ def ItemAfter(item, options):
         item.content = item.desc + "<br/><br/><center>* * *</center><br/><br/>" + item.content
         del item.desc
 
-    if not options.keep and not options.proxy:
-        del item.desc
-
     if options.nolink and item.content:
         content = lxml.html.fromstring(item.content)
         for link in content.xpath('//a'):