fixed compilation errors on JDK 1.5

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1364926 13f79535-47bb-0310-9956-ffa450edef68

src/ooxml/java/org/apache/poi/xssf/streaming/SXSSFSheet.java

@@ -1266,13 +1266,11 @@ public class SXSSFSheet implements Sheet, Cloneable
     }
     
     
-    @Override
     public CellRangeAddress getRepeatingRows() {
       return _sh.getRepeatingRows();
     }
     
     
-    @Override
     public CellRangeAddress getRepeatingColumns() {
       return _sh.getRepeatingColumns();
     }

src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFSheet.java

@@ -3187,13 +3187,11 @@ public class XSSFSheet extends POIXMLDocumentPart implements Sheet {
     }
     
     
-    @Override
     public CellRangeAddress getRepeatingRows() {
       return getRepeatingRowsOrColums(true);
     }
 
 
-    @Override
     public CellRangeAddress getRepeatingColumns() {
       return getRepeatingRowsOrColums(false);
     }