Merge pull request #2949 from oah1021/Removed_redundant_assignments

Removed redundant assignments.

Author: hazendaz

src/main/java/org/apache/ibatis/datasource/pooled/PooledDataSource.java

@@ -557,7 +557,7 @@ private PooledConnection popConnection(String username, String password) throws
    * @return True if the connection is still usable
    */
   protected boolean pingConnection(PooledConnection conn) {
-    boolean result = true;
+    boolean result;
 
     try {
       result = !conn.getRealConnection().isClosed();
@@ -581,7 +581,6 @@ protected boolean pingConnection(PooledConnection conn) {
         if (!realConn.getAutoCommit()) {
           realConn.rollback();
         }
-        result = true;
         if (log.isDebugEnabled()) {
           log.debug("Connection " + conn.getRealHashCode() + " is GOOD!");
         }