Remove unused import

Author: huksley

src/main/java/com/wizecore/graylog2/plugin/SyslogOutput.java

@@ -22,12 +22,7 @@
 import org.graylog2.syslog4j.impl.message.processor.structured.StructuredSyslogMessageProcessor;
 import org.graylog2.syslog4j.impl.net.tcp.TCPNetSyslogConfig;
 import org.graylog2.syslog4j.impl.net.udp.UDPNetSyslogConfig;
-
-import oshi.driver.unix.aix.Ls;
-
 import javax.inject.Inject;
-
-import java.nio.charset.Charset;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.List;