test(core): avoid unnecessary data setup in label index regression

Author: contrueCT

hugegraph-server/hugegraph-test/src/main/java/org/apache/hugegraph/core/VertexCoreTest.java

@@ -9022,9 +9022,6 @@ public void testQueryByJointLabels() {
     public void testCollectMatchedIndexesByJointLabelsWithIndexedProperties() {
         HugeGraph graph = graph();
         initPersonIndex(true);
-        init5Persons();
-        init5Computers();
-        init10Vertices();
 
         VertexLabel person = graph.vertexLabel("person");
         VertexLabel computer = graph.vertexLabel("computer");