refactor: remove unused code

Needlework.Net/Models/Resources.cs

@@ -1,23 +0,0 @@
-using System.Net.Http;
-using System.Threading.Tasks;
-using Microsoft.OpenApi.Models;
-using Microsoft.OpenApi.Readers;
-
-namespace Needlework.Net.Models;
-
-public static class Resources
-{
-    /// <summary>
-    /// Get the OpenApi document of the LCU schema. Provided by dysolix. 
-    /// </summary>
-    /// <param name="httpClient"></param>
-    /// <returns></returns>
-    public static async Task<OpenApiDocument> GetOpenApiDocumentAsync(HttpClient httpClient)
-    {
-        var stream = await httpClient.GetStreamAsync("https://raw.githubusercontent.com/dysolix/hasagi-types/main/swagger.json");
-        
-        var document = new OpenApiStreamReader().Read(stream, out var _);
-
-        return document;
-    }
-}