fixing loose-ends as pointed out by Jesse

core/src/main/java/hudson/tasks/ArtifactArchiver.java

@@ -32,7 +32,6 @@ import hudson.model.AbstractProject;
 import hudson.model.BuildListener;
 import hudson.model.Result;
 import hudson.util.FormValidation;
-import hudson.util.TimeUnit2;
 import org.kohsuke.stapler.StaplerRequest;
 import org.kohsuke.stapler.DataBoundConstructor;
 import org.kohsuke.stapler.AncestorInPath;
@@ -123,7 +122,6 @@ public class ArtifactArchiver extends Recorder {
         File dir = build.getArtifactsDir();
         dir.mkdirs();
 
-        final long start = System.nanoTime();
         listener.getLogger().println(Messages.ArtifactArchiver_ARCHIVING_ARTIFACTS());
         try {
             FilePath ws = build.getWorkspace();
@@ -159,8 +157,6 @@ public class ArtifactArchiver extends Recorder {
             return true;
         }
 
-        // System.out.println("Took "+ TimeUnit2.NANOSECONDS.toMillis(System.nanoTime()-start));
-
         return true;
     }
 

war/pom.xml

@@ -270,7 +270,6 @@ THE SOFTWARE.
                 <artifactItem>
                   <groupId>org.jenkins-ci.plugins</groupId>
                   <artifactId>ssh-slaves</artifactId>
-                  <!-- when upgrading may need to add credentials and ssh-credentials too: https://github.com/jenkinsci/ssh-slaves-plugin/commit/7f7031bdaae528baf8e4a1cf29a95849ef268c5c -->
                   <version>0.23</version>
                   <type>hpi</type>
                 </artifactItem>