Fix NullRef in Cloudflare detection service

src/NzbDrone.Core/Http/CloudFlare/CloudFlareDetectionService.cs

@@ -32,8 +32,8 @@ namespace NzbDrone.Core.Http.CloudFlare
             }
 
             // detect Custom CloudFlare for EbookParadijs, Film-Paleis, MuziekFabriek and Puur-Hollands
-            if (response.Headers.Vary.ToString() == "Accept-Encoding,User-Agent" &&
-                response.Headers.ContentEncoding.ToString() == "" &&
+            if (response.Headers.Vary == "Accept-Encoding,User-Agent" &&
+                response.Headers.ContentEncoding == "" &&
                 response.Content.ToLower().Contains("ddos"))
             {
                 return true;

src/NzbDrone.Core/IndexerProxies/FlareSolverr/FlareSolverr.cs

@@ -19,7 +19,6 @@ namespace NzbDrone.Core.IndexerProxies.FlareSolverr
 {
     public class FlareSolverr : HttpIndexerProxyBase<FlareSolverrSettings>
     {
-        private static readonly HashSet<string> CloudflareServerNames = new HashSet<string> { "cloudflare", "cloudflare-nginx", "ddos-guard" };
         private readonly ICached<string> _cache;
 
         public FlareSolverr(IProwlarrCloudRequestBuilder cloudRequestBuilder, IHttpClient httpClient, Logger logger, ILocalizationService localizationService, ICacheManager cacheManager)