Remove unused import statement

Author: shs96c

java/server/src/org/openqa/selenium/netty/server/SeleniumHttpInitializer.java

@@ -19,7 +19,6 @@
 
 import io.netty.channel.ChannelInitializer;
 import io.netty.channel.socket.SocketChannel;
-import io.netty.handler.codec.http.HttpObjectAggregator;
 import io.netty.handler.codec.http.HttpServerCodec;
 import io.netty.handler.codec.http.HttpServerKeepAliveHandler;
 import io.netty.handler.ssl.SslContext;