Remove more Content-Length references

Emby.Server.Implementations/HttpServer/FileWriter.cs

@@ -99,12 +99,10 @@ namespace Emby.Server.Implementations.HttpServer
             RangeStart = requestedRange.Key;
             RangeLength = 1 + RangeEnd - RangeStart;
 
-            // Content-Length is the length of what we're serving, not the original content
-            var lengthString = RangeLength.ToString(UsCulture);
             var rangeString = $"bytes {RangeStart}-{RangeEnd}/{TotalContentLength}";
             Headers[HeaderNames.ContentRange] = rangeString;
 
-            Logger.LogInformation("Setting range response values for {0}. RangeRequest: {1} Content-Length: {2}, Content-Range: {3}", Path, RangeHeader, lengthString, rangeString);
+            Logger.LogInformation("Setting range response values for {0}. RangeRequest: {1} Content-Range: {2}", Path, RangeHeader, rangeString);
         }
 
         /// <summary>

Emby.Server.Implementations/HttpServer/RangeRequestWriter.cs

@@ -96,7 +96,6 @@ namespace Emby.Server.Implementations.HttpServer
             RangeStart = requestedRange.Key;
             RangeLength = 1 + RangeEnd - RangeStart;
 
-            // Content-Length is the length of what we're serving, not the original content
             Headers[HeaderNames.ContentRange] = $"bytes {RangeStart}-{RangeEnd}/{TotalContentLength}";
 
             if (RangeStart > 0 && SourceStream.CanSeek)

MediaBrowser.Model/Services/QueryParamCollection.cs

@@ -25,16 +25,12 @@ namespace MediaBrowser.Model.Services
         /// <summary>
         /// Adds a new query parameter.
         /// </summary>
-        public virtual void Add(string key, string value)
+        public void Add(string key, string value)
         {
-            if (string.Equals(key, "content-length", StringComparison.OrdinalIgnoreCase))
-            {
-                return;
-            }
             Add(new NameValuePair(key, value));
         }
 
-        public virtual void Set(string key, string value)
+        private void Set(string key, string value)
         {
             if (string.IsNullOrEmpty(value))
             {
@@ -62,7 +58,7 @@ namespace MediaBrowser.Model.Services
             Add(key, value);
         }
 
-        public string Get(string name)
+        private string Get(string name)
         {
             var stringComparison = GetStringComparison();
 
@@ -77,7 +73,7 @@ namespace MediaBrowser.Model.Services
             return null;
         }
 
-        public virtual List<NameValuePair> GetItems(string name)
+        private List<NameValuePair> GetItems(string name)
         {
             var stringComparison = GetStringComparison();
 
@@ -111,20 +107,6 @@ namespace MediaBrowser.Model.Services
             return list;
         }
 
-        public Dictionary<string, string> ToDictionary()
-        {
-            var stringComparer = GetStringComparer();
-
-            var headers = new Dictionary<string, string>(stringComparer);
-
-            foreach (var pair in this)
-            {
-                headers[pair.Name] = pair.Value;
-            }
-
-            return headers;
-        }
-
         public IEnumerable<string> Keys
         {
             get