DateTime field should not have length validation

Author: gnongsie

generator/cybersource-rest-spec.json

@@ -12682,8 +12682,6 @@
 								},
 								"submitTimeUtc": {
 									"type": "string",
-									"maxLength": 6,
-									"minLength": 6,
 									"description": "Time of request in UTC. `Format: YYYY-MM-DDThh:mm:ssZ`\n\nExample 2016-08-11T22:47:57Z equals August 11, 2016, at 22:47:57 (10:47:57 p.m.). The T separates the date and the\ntime. The Z indicates UTC.\n"
 								},
 								"status": {