Re-enabled list indexes/collections sharded tests

JAVA-2834

Author: rozza

driver-core/src/test/functional/com/mongodb/operation/ListCollectionsOperationSpecification.groovy

@@ -56,7 +56,7 @@ import static com.mongodb.ClusterFixture.isSharded
 import static com.mongodb.ClusterFixture.serverVersionAtLeast
 import static java.util.concurrent.TimeUnit.MILLISECONDS
 
-@IgnoreIf({ serverVersionAtLeast(4, 0) && isSharded() })
+
 class ListCollectionsOperationSpecification extends OperationFunctionalSpecification {
 
     def madeUpDatabase = 'MadeUpDatabase'

driver-core/src/test/functional/com/mongodb/operation/ListIndexesOperationSpecification.groovy

@@ -52,10 +52,9 @@ import static com.mongodb.ClusterFixture.enableMaxTimeFailPoint
 import static com.mongodb.ClusterFixture.executeAsync
 import static com.mongodb.ClusterFixture.getBinding
 import static com.mongodb.ClusterFixture.isSharded
-import static com.mongodb.ClusterFixture.serverVersionAtLeast
 import static java.util.concurrent.TimeUnit.MILLISECONDS
 
-@IgnoreIf({ serverVersionAtLeast(4, 0) && isSharded() })
+
 class ListIndexesOperationSpecification extends OperationFunctionalSpecification {
 
     def 'should return empty list for nonexistent collection'() {