Removing unneeded imports

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

@@ -25,14 +25,6 @@ package hudson.model;
 
 import hudson.Extension;
 
-import java.io.File;
-import java.io.IOException;
-
-import org.kohsuke.stapler.StaplerRequest;
-import org.kohsuke.stapler.StaplerResponse;
-
-import javax.servlet.ServletException;
-
 /**
  * Free-style software project.
  * 

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

@@ -27,7 +27,6 @@ package hudson.model;
 import hudson.EnvVars;
 import hudson.Util;
 import hudson.scm.SCM;
-import hudson.slaves.OfflineCause;
 import hudson.tasks.BuildWrapper;
 import hudson.tasks.Builder;
 import hudson.util.VariableResolver;

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

@@ -78,7 +78,6 @@ import java.util.GregorianCalendar;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
-import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.NoSuchElementException;

test/src/main/java/org/jvnet/hudson/test/HudsonTestCase.java

@@ -111,7 +111,6 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.lang.annotation.Annotation;
 import java.lang.management.ThreadInfo;
-import java.lang.ref.WeakReference;
 import java.lang.reflect.Array;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
@@ -123,14 +122,11 @@ import java.net.URLClassLoader;
 import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collection;
 import java.util.Collections;
 import java.util.Enumeration;
-import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Locale;
-import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.*;
 import java.util.jar.Manifest;