removeRingConnectionsBetween(vertexIdA, vertexIdB) {
    let toRemove = Array();

    for (var i = 0; i < this.ringConnections.length; i++) {
      let ringConnection = this.ringConnections[i];

      if (ringConnection.firstRingId === vertexIdA && ringConnection.secondRingId === vertexIdB || ringConnection.firstRingId === vertexIdB && ringConnection.secondRingId === vertexIdA) {
        toRemove.push(ringConnection.id);
      }
    }

    for (var i = 0; i < toRemove.length; i++) {
      this.removeRingConnection(toRemove[i]);
    }
  }
Removes all ring connections between two vertices.

@param {Number} vertexIdA A vertex id.
@param {Number} vertexIdB A vertex id.