pointless cast

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@16789 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/model/Build.java

@@ -154,7 +154,7 @@ public abstract class Build <P extends Project<P,B>,B extends Build<P,B>>
                 // tear down in reverse order
                 boolean failed=false;
                 for( int i=buildEnvironments.size()-1; i>=0; i-- ) {
-                    if (!buildEnvironments.get(i).tearDown((AbstractBuild)Build.this,listener)) {
+                    if (!buildEnvironments.get(i).tearDown(Build.this,listener)) {
                         failed=true;
                     }                    
                 }