remove some unused imports

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1800255 13f79535-47bb-0310-9956-ffa450edef68

src/examples/src/org/apache/poi/hssf/usermodel/examples/EventExample.java

@@ -114,6 +114,7 @@ public class EventExample
         fin.close();
         // and our document input stream (don't want to leak these!)
         din.close();
+        poifs.close();
         System.out.println("done.");
     }
 }

src/examples/src/org/apache/poi/xssf/usermodel/examples/CustomXMLMapping.java

@@ -41,5 +41,6 @@ public class CustomXMLMapping {
             System.out.println(xml);
         }
         pkg.close();
+        wb.close();
     }
 }

src/excelant/java/org/apache/poi/ss/excelant/util/ExcelAntWorkbookUtil.java

@@ -17,7 +17,6 @@
 
 package org.apache.poi.ss.excelant.util;
 
-import java.io.File;
 import java.io.FileInputStream;
 import java.util.ArrayList;
 import java.util.Date;

src/java/org/apache/poi/ss/formula/eval/forked/ForkedEvaluationCell.java

@@ -27,7 +27,6 @@ import org.apache.poi.ss.formula.eval.StringEval;
 import org.apache.poi.ss.formula.eval.ValueEval;
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.CellType;
-import org.apache.poi.util.Internal;
 
 /**
  * Represents a cell being used for forked evaluation that has had a value set different from the

src/java/org/apache/poi/ss/usermodel/CellValue.java

@@ -18,7 +18,6 @@
 package org.apache.poi.ss.usermodel;
 
 import org.apache.poi.ss.formula.eval.ErrorEval;
-import org.apache.poi.util.Internal;
 import org.apache.poi.util.Removal;
 
 /**

src/java/org/apache/poi/ss/usermodel/FormulaEvaluator.java

@@ -19,8 +19,6 @@ package org.apache.poi.ss.usermodel;
 
 import java.util.Map;
 
-import org.apache.poi.util.Internal;
-
 /**
  * Evaluates formula cells.<p/>
  * 

src/ooxml/java/org/apache/poi/POIXMLDocument.java

@@ -34,7 +34,6 @@ import org.apache.poi.openxml4j.opc.PackageAccess;
 import org.apache.poi.openxml4j.opc.PackagePart;
 import org.apache.poi.openxml4j.opc.PackageRelationship;
 import org.apache.poi.openxml4j.opc.PackageRelationshipCollection;
-import org.apache.poi.poifs.filesystem.DocumentFactoryHelper;
 import org.apache.xmlbeans.impl.common.SystemCache;
 
 /**

src/ooxml/java/org/apache/poi/poifs/crypt/temp/EncryptedTempData.java

@@ -36,7 +36,6 @@ import org.apache.poi.poifs.crypt.ChainingMode;
 import org.apache.poi.poifs.crypt.CipherAlgorithm;
 import org.apache.poi.poifs.crypt.CryptoFunctions;
 import org.apache.poi.util.Beta;
-import org.apache.poi.util.Internal;
 import org.apache.poi.util.POILogFactory;
 import org.apache.poi.util.POILogger;
 import org.apache.poi.util.TempFile;