MsRest::ServiceClientCredentials should not be required by default

[devigned]

Given the following helloworld.json:

{
    "swagger": "2.0",
    "info": {
        "title": "HelloWorld",
        "version": "1.0.0"
    },
    "host": "swaggersample.azurewebsites.net",
    "paths": {
        "/api/HelloWorld": {
            "get": {
                "operationId": "Greeting_Get",
                "produces": [
                    "application/json"
                ],
                "responses": {
                    "200": {
                        "description": "Responds with a greeting from AutoRest",
                        "schema": {
                            "type": "string"
                        }
                    }
                }
            }
        }
    }
}

Generating code with: autorest -Input helloworld.json -Namespace 'HelloWorld' -CodeGenerator Ruby -OutputDirectory Ruby

Creates a client that required credentials in the constructor. This is incorrect and should be fixed.

[sarangan12]

By default, they are assigned nil values. Closing this Issue

[devigned]

@sarangan12, not to nit pick, but should the constructor even generate with a credentials parameter?