Unused imports

git-svn-id: https://svn.apache.org/repos/asf/mina/ftpserver/trunk@1129751 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/core/src/main/java/org/apache/ftpserver/listener/nio/NioListener.java b/core/src/main/java/org/apache/ftpserver/listener/nio/NioListener.java
index 8a4c708..401b7d3 100644
--- a/core/src/main/java/org/apache/ftpserver/listener/nio/NioListener.java
+++ b/core/src/main/java/org/apache/ftpserver/listener/nio/NioListener.java
@@ -48,7 +48,6 @@
 import org.apache.mina.filter.logging.MdcInjectionFilter;
 import org.apache.mina.filter.ssl.SslFilter;
 import org.apache.mina.transport.socket.SocketAcceptor;
-import org.apache.mina.transport.socket.SocketSessionConfig;
 import org.apache.mina.transport.socket.nio.NioSocketAcceptor;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;