log: remove redundant handling of --limit

A returned 'revs' set is pre-filtered by cmdutil.getlogrevs(). The result
of displayer.flush() isn't used anymore, so removed.

mercurial/cmdutil.py

@@ -1585,8 +1585,6 b' class changeset_printer(object):'
         if rev in self.hunk:
             self.ui.write(self.hunk[rev])
             del self.hunk[rev]
-            return 1
-        return 0
 
     def close(self):
         if self.footer:

mercurial/commands.py

@@ -3433,9 +3433,6 b' def log(ui, repo, *pats, **opts):'
         elif filematcher is None:
             filematcher = lrfilematcher
 
-    limit = cmdutil.loglimit(opts)
-    count = 0
-
     getrenamed = None
     if opts.get('copies'):
         endrev = None
@@ -3446,8 +3443,6 b' def log(ui, repo, *pats, **opts):'
     ui.pager('log')
     displayer = cmdutil.show_changeset(ui, repo, opts, buffered=True)
     for rev in revs:
-        if count == limit:
-            break
         ctx = repo[rev]
         copies = None
         if getrenamed is not None and rev:
@@ -3466,8 +3461,7 b' def log(ui, repo, *pats, **opts):'
             revhunksfilter = None
         displayer.show(ctx, copies=copies, matchfn=revmatchfn,
                        hunksfilterfn=revhunksfilter)
-        if displayer.flush(ctx):
-            count += 1
+        displayer.flush(ctx)
 
     displayer.close()