code: public static IndexFor onLabel(String label) {
  		IndexFor ret = IFactory.dropOnLabel(label);
  		ASTNode an = APIObjectAccess.getAstNode(ret);
  		an.setClauseType(ClauseType.DROP_INDEX);
  		return ret;
  	}
docs: <div color='red' style="font-size:24px;color:red"><b><i><u>JCYPHER</u></i></b></div>
  <div color='red' style="font-size:18px;color:red"><i>select a label (of nodes) in order to drop an index that was previously created on that label</i></div>
  <div color='red' style="font-size:18px;color:red"><i>e.g. <b>DROP_INDEX.onLabel("Person")</b>...</i></div>
  <br/>