private void removeValue(final Vertex vertex, final String key, final VertexProperty property) {
        this.computeProperties.<List<Map<String, VertexProperty<?>>>>getOrDefault(vertex, Collections.emptyMap()).get(key).remove(property);
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/process/computer/TinkerGraphComputerView.java