EAGLESIX-2651: Nary: update subclasses (missed one)

lib/pipeline/expressions/SetEqualsExpression.js

@@ -9,7 +9,6 @@
  * @constructor
  **/
 var SetEqualsExpression = module.exports = function SetEqualsExpression() {
-	this.nargs = 2;
 	base.call(this);
 }, klass = SetEqualsExpression, base = require("./NaryBaseExpressionT")(SetEqualsExpression), proto = klass.prototype = Object.create(base.prototype, {constructor:{value:klass}});