function handleDeleteUserRequests(oXhr) {
		var sKey;

		sKey = getUserKeyFromUrl(oXhr.url);
		aUsers.splice(findUserIndex(sKey), 1);

		// The response to DELETE requests is always HTTP 204 (No Content)
		return [
			204,
			{
				"OData-Version" : "4.0"
			},
			null
		];
	}
Handles DELETE requests for users and returns a fitting response.
Deletes the user according to the request.
@param {Object} oXhr - the Sinon fake XMLHttpRequest
@returns {Array} an array with the response information needed by Sinon's respond() function