Delete a model identified by name in a given API

    CLI Example:

    .. code-block:: bash

        salt myminion boto_apigateway.delete_api_model restApiId modelName

def delete_api_model(restApiId, modelName, region=None, key=None, keyid=None, profile=None):
    '''
    Delete a model identified by name in a given API

    CLI Example:

    .. code-block:: bash

        salt myminion boto_apigateway.delete_api_model restApiId modelName

    '''
    try:
        conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
        conn.delete_model(restApiId=restApiId, modelName=modelName)
        return {'deleted': True}
    except ClientError as e:
        return {'deleted': False, 'error': __utils__['boto3.get_error'](e)}