KeyCode: remove unneeded imports

Author: ctrueden

src/test/java/org/scijava/input/KeyCodeTest.java

@@ -30,11 +30,8 @@
 package org.scijava.input;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
 
 import org.junit.Test;
-import org.scijava.plugin.PluginInfo;
 
 /**
  * Tests {@link KeyCode}.