Cleanup unused imports

src/main/java/com/threerings/getdown/data/Application.java

@@ -18,7 +18,6 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.PrintStream;
 import java.io.RandomAccessFile;
-import java.io.UnsupportedEncodingException;
 import java.lang.reflect.Method;
 import java.net.MalformedURLException;
 import java.net.URL;

src/main/java/com/threerings/getdown/util/VersionUtil.java

@@ -13,7 +13,6 @@ import java.io.FileReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.PrintStream;
-import java.io.Reader;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 

src/test/java/com/threerings/getdown/data/SysPropsTest.java

@@ -6,7 +6,6 @@
 package com.threerings.getdown.data;
 
 import org.junit.*;
-import static org.junit.Assert.*;
 
 public class SysPropsTest {