OAK-11522 : removed usage of Guava's Iterables.filter (remaining one) (#2152)

Co-authored-by: Rishabh Kumar <diam@adobe.com>

Author: rishabhdaim

oak-exercise/src/test/java/org/apache/jackrabbit/oak/exercise/security/privilege/L3_BuiltInPrivilegesTest.java

@@ -32,6 +32,7 @@
 import org.apache.jackrabbit.oak.api.CommitFailedException;
 import org.apache.jackrabbit.oak.api.ContentSession;
 import org.apache.jackrabbit.oak.api.Root;
+import org.apache.jackrabbit.oak.commons.collections.IterableUtils;
 import org.apache.jackrabbit.oak.spi.security.privilege.PrivilegeConstants;
 import org.junit.Test;
 
@@ -132,7 +133,7 @@ public void testAggregation() throws RepositoryException {
                 /* EXERCISE */
         );
 
-        Iterable<Privilege> aggregated = Iterables.<Privilege>filter(
+        Iterable<Privilege> aggregated = IterableUtils.filter(
                 Arrays.asList(privilegeManager.getRegisteredPrivileges()),
                 input -> input != null && input.isAggregate());