remove old requires descriptions

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@116173 13f79535-47bb-0310-9956-ffa450edef68

plugin/project.xml

@@ -24,7 +24,7 @@
   <id>maven-plugin-plugin</id>
   <name>Maven Plugin Plugin</name>
   <currentVersion>1.5.2-SNAPSHOT</currentVersion>
-  <description>Maven Plugin management plugin. Requires Maven 1.0 RC4.</description>
+  <description>Maven Plugin management plugin..</description>
   <shortDescription>Maven Plugin plugin</shortDescription>
   <url>http://maven.apache.org/reference/plugins/plugin/</url>
   <issueTrackingUrl>http://jira.codehaus.org/browse/MPPLUGIN</issueTrackingUrl>