merge: stop emptying out 'cd' and 'dc' actions

(1) These aren't currently read from anywhere, so emptying this out is
    pointless.
(2) These *will* be read from later in upcoming patches, and not emptying
    them out will be important then.

mercurial/merge.py

@@ -1262,7 +1262,6 def update(repo, node, branchmerge, forc
                 actions['r'].append((f, None, "prompt delete"))
             else:
                 actions['a'].append((f, None, "prompt keep"))
-        del actions['cd'][:]
 
         for f, args, msg in sorted(actions['dc']):
             flags, = args
@@ -1271,7 +1270,6 def update(repo, node, branchmerge, forc
                   "use (c)hanged version or leave (d)eleted?"
                   "$$ &Changed $$ &Deleted") % f, 0) == 0:
                 actions['g'].append((f, (flags,), "prompt recreating"))
-        del actions['dc'][:]
 
         # divergent renames
         for f, fl in sorted(diverge.iteritems()):