remove readme git warning

Author: johndoh

README.md

@@ -8,15 +8,6 @@ please see the [SpamAssassin Wiki][usingsql].
 Inspiration for this plugin was taken from:
 [WebUserPrefs][webuserprefs]
 
-ATTENTION
----------
-This is just a snapshot from the GIT repository and is **NOT A STABLE version
-of SAUserPrefs**. It is Intended for use with the **GIT-master** version of
-Roundcube and it may not be compatible with older versions. Stable versions of
-SAUserPrefs are available from the [Roundcube plugin repository][rcplugrepo]
-(for 1.0 and above) or the [releases section][releases] of the GitHub
-repository.
-
 Requirements
 ------------
 * [Roundcube jQueryUI plugin][rcjqui]
@@ -230,7 +221,5 @@ then recompiling the CSS.
 
 [usingsql]: https://wiki.apache.org/spamassassin/UsingSQL
 [webuserprefs]: https://sourceforge.net/projects/webuserprefs/
-[rcplugrepo]: https://plugins.roundcube.net/#/packages/johndoh/sauserprefs
-[releases]: https://github.com/johndoh/roundcube-sauserprefs/releases
 [rcjqui]: https://github.com/roundcube/roundcubemail/tree/master/plugins/jqueryui
 [gpl]: https://www.gnu.org/licenses/gpl.html