DX-2619 Fixed default State in ModifyCallRequest payload

Author: brianluisgomez

Bandwidth.Standard/Voice/Models/ModifyCallRequest.cs

@@ -44,13 +44,6 @@ public class ModifyCallRequest
             { "tag", false },
         };
 
-        /// <summary>
-        /// Initializes a new instance of the <see cref="ModifyCallRequest"/> class.
-        /// </summary>
-        public ModifyCallRequest()
-        {
-        }
-
         /// <summary>
         /// Initializes a new instance of the <see cref="ModifyCallRequest"/> class.
         /// </summary>