Format custom authz engine code (elastic#125546) (elastic#125753)

No compilation issue in this branch Relates: elastic#125469

Author: ywangd

plugins/examples/security-authorization-engine/src/main/java/org/elasticsearch/example/CustomAuthorizationEngine.java

@@ -17,8 +17,6 @@
 import org.elasticsearch.xpack.core.security.authc.Authentication;
 import org.elasticsearch.xpack.core.security.authc.Subject;
 import org.elasticsearch.xpack.core.security.authz.AuthorizationEngine;
-import org.elasticsearch.xpack.core.security.authz.AuthorizationEngine.PrivilegesToCheck;
-import org.elasticsearch.xpack.core.security.authz.AuthorizationEngine.PrivilegesCheckResult;
 import org.elasticsearch.xpack.core.security.authz.ResolvedIndices;
 import org.elasticsearch.xpack.core.security.authz.RoleDescriptor;
 import org.elasticsearch.xpack.core.security.authz.RoleDescriptor.IndicesPrivileges;
@@ -34,12 +32,12 @@
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.function.Supplier;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
 /**

plugins/examples/security-authorization-engine/src/test/java/org/elasticsearch/example/CustomAuthorizationEngineTests.java

@@ -11,8 +11,6 @@
 
 import org.elasticsearch.action.search.SearchRequest;
 import org.elasticsearch.action.support.PlainActionFuture;
-import org.elasticsearch.cluster.metadata.IndexAbstraction;
-import org.elasticsearch.cluster.metadata.IndexAbstraction.ConcreteIndex;
 import org.elasticsearch.cluster.metadata.IndexMetadata;
 import org.elasticsearch.cluster.metadata.Metadata;
 import org.elasticsearch.common.settings.Settings;
@@ -30,9 +28,6 @@
 import org.elasticsearch.xpack.core.security.user.User;
 
 import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.stream.Stream;
 
 import static org.hamcrest.Matchers.is;