Remove unsupported pagination for Nyaa

(cherry picked from commit fef525ddb8b5f91bb36b3c9e652663fccb098a00)

Closes #4428

src/NzbDrone.Core/Indexers/Nyaa/Nyaa.cs

@@ -10,7 +10,6 @@ namespace NzbDrone.Core.Indexers.Nyaa
         public override string Name => "Nyaa";
 
         public override DownloadProtocol Protocol => DownloadProtocol.Torrent;
-        public override int PageSize => 75;
 
         public Nyaa(IHttpClient httpClient, IIndexerStatusService indexerStatusService, IConfigService configService, IParsingService parsingService, Logger logger)
             : base(httpClient, indexerStatusService, configService, parsingService, logger)
@@ -19,7 +18,7 @@ namespace NzbDrone.Core.Indexers.Nyaa
 
         public override IIndexerRequestGenerator GetRequestGenerator()
         {
-            return new NyaaRequestGenerator() { Settings = Settings, PageSize = PageSize };
+            return new NyaaRequestGenerator() { Settings = Settings };
         }
 
         public override IParseIndexerResponse GetParser()

src/NzbDrone.Core/Indexers/Nyaa/NyaaRequestGenerator.cs

@@ -9,20 +9,11 @@ namespace NzbDrone.Core.Indexers.Nyaa
     {
         public NyaaSettings Settings { get; set; }
 
-        public int MaxPages { get; set; }
-        public int PageSize { get; set; }
-
-        public NyaaRequestGenerator()
-        {
-            MaxPages = 3;
-            PageSize = 75;
-        }
-
         public virtual IndexerPageableRequestChain GetRecentRequests()
         {
             var pageableRequests = new IndexerPageableRequestChain();
 
-            pageableRequests.Add(GetPagedRequests(MaxPages, null));
+            pageableRequests.Add(GetPagedRequests(null));
 
             return pageableRequests;
         }
@@ -34,7 +25,7 @@ namespace NzbDrone.Core.Indexers.Nyaa
             var artistQuery = searchCriteria.CleanArtistQuery.Replace("+", " ").Trim();
             var albumQuery = searchCriteria.CleanAlbumQuery.Replace("+", " ").Trim();
 
-            pageableRequests.Add(GetPagedRequests(MaxPages, PrepareQuery($"{artistQuery} {albumQuery}")));
+            pageableRequests.Add(GetPagedRequests(PrepareQuery($"{artistQuery} {albumQuery}")));
 
             return pageableRequests;
         }
@@ -45,33 +36,21 @@ namespace NzbDrone.Core.Indexers.Nyaa
 
             var artistQuery = searchCriteria.CleanArtistQuery.Replace("+", " ").Trim();
 
-            pageableRequests.Add(GetPagedRequests(MaxPages, PrepareQuery(artistQuery)));
+            pageableRequests.Add(GetPagedRequests(PrepareQuery(artistQuery)));
 
             return pageableRequests;
         }
 
-        private IEnumerable<IndexerRequest> GetPagedRequests(int maxPages, string term)
+        private IEnumerable<IndexerRequest> GetPagedRequests(string term)
         {
-            var baseUrl = string.Format("{0}/?page=rss{1}", Settings.BaseUrl.TrimEnd('/'), Settings.AdditionalParameters);
+            var baseUrl = $"{Settings.BaseUrl.TrimEnd('/')}/?page=rss{Settings.AdditionalParameters}";
 
             if (term != null)
             {
                 baseUrl += "&term=" + term;
             }
 
-            if (PageSize == 0)
-            {
-                yield return new IndexerRequest(baseUrl, HttpAccept.Rss);
-            }
-            else
-            {
-                yield return new IndexerRequest(baseUrl, HttpAccept.Rss);
-
-                for (var page = 1; page < maxPages; page++)
-                {
-                    yield return new IndexerRequest($"{baseUrl}&offset={page + 1}", HttpAccept.Rss);
-                }
-            }
+            yield return new IndexerRequest(baseUrl, HttpAccept.Rss);
         }
 
         private string PrepareQuery(string query)