removed unused imports

Author: smiklosovic

cassandra-2.2/src/main/java/org/apache/cassandra/auth/Cassandra22LDAPAuthenticator.java

@@ -1,7 +1,6 @@
 package org.apache.cassandra.auth;
 
 import com.instaclustr.cassandra.ldap.PlainTextSaslAuthenticator;
-import org.apache.cassandra.auth.LegacyCassandraLDAPAuthenticator;
 
 /*
  * Licensed to the Apache Software Foundation (ASF) under one

cassandra-3.0/src/main/java/org/apache/cassandra/auth/Cassandra30LDAPAuthenticator.java

@@ -21,7 +21,6 @@
 import java.net.InetAddress;
 
 import com.instaclustr.cassandra.ldap.PlainTextSaslAuthenticator;
-import org.apache.cassandra.auth.LegacyCassandraLDAPAuthenticator;
 
 /**
  * Uses JNDI to authenticate to an LDAP server. On successful authentication a Cassandra role is created for the provided