remove reference to manual filtering when tagging

This has been implemented in the lib by amdragon:

id:"1320724523-23568-1-git-send-email-amdragon@mit.edu"

diff --git a/performance.mdwn b/performance.mdwn
index e838c8a64f17693cad4d7661081f07c37aa71412..8515e6a637bb196e6231c9bd115c117dbff1dd9d 100644 (file)
--- a/performance.mdwn
+++ b/performance.mdwn
@@ -100,18 +100,3 @@ Remove old and renamed compacted, if compacting went well:
 * [Sebastian Spaeth](http://notmuchmail.org/pipermail/notmuch/2011/004048.html)
 
 * [Pieter Praet](http://notmuchmail.org/pipermail/notmuch/2011/004175.html)
-
-
-## Tagging: use filters!
-
-Instead of just:
-
-    $ notmuch tag +foo
-
-use:
-
-    $ notmuch tag +foo -- not tag:foo
-
-See the ongoing discussion:
-
-* [Optimization for notmuch tag by implicit filters](http://notmuchmail.org/pipermail/notmuch/2011/004197.html)