[meld] diffmap: Remove now-misleading comment

[Kai Willadsen <kaiw src gnome org>]

commit 18ff8a6f7b26bd0d3fdebb68ee48c385b9dd6629
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Wed Nov 9 06:04:44 2016 +1000

    diffmap: Remove now-misleading comment

 meld/diffmap.py |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/meld/diffmap.py b/meld/diffmap.py
index 232cf4a..50903c3 100644
--- a/meld/diffmap.py
+++ b/meld/diffmap.py
@@ -121,8 +121,6 @@ class DiffMap(Gtk.DrawingArea):
         x0 = xpad
         x1 = width - 2 * xpad
 
-        # Hack to work around a cairo bug when calling create_similar
-        # https://bugs.freedesktop.org/show_bug.cgi?id=60519
         if not (width > 0 and height > 0):
             return