Revert

Author: MaggieKimani1

src/Microsoft.OpenApi/Models/OpenApiConstants.cs

@@ -535,6 +535,11 @@ public static class OpenApiConstants
         /// </summary>
         public const string Flows = "flows";
 
+        /// <summary>
+        /// Field: OpenIdConnectUrl
+        /// </summary>
+        public const string OpenIdConnectUrl = "openIdConnectUrl";
+
         /// <summary>
         /// Field: DefaultName
         /// </summary>