Fixes imports

Signed-off-by: Darshit Chanpura <[email protected]>

Author: DarshitChanpura

src/main/java/org/opensearch/security/OpenSearchSecurityPlugin.java

@@ -43,6 +43,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -279,7 +280,6 @@ public final class OpenSearchSecurityPlugin extends OpenSearchSecuritySSLPlugin
     private volatile OpensearchDynamicSetting<Boolean> transportPassiveAuthSetting;
     private volatile PasswordHasher passwordHasher;
     private volatile DlsFlsBaseContext dlsFlsBaseContext;
-    private ResourceAccessEvaluator resourceAccessEvaluator;
     private ResourceManagementRepository rmr;
     private ResourceAccessHandler resourceAccessHandler;
     private final Set<String> indicesToListen = new HashSet<>();