Remove RPC from main distribution (#925)

experiment/Discord.Net.Rpc/API/Rpc/VoiceDevice.cs

@@ -0,0 +1,12 @@
+using Newtonsoft.Json;
+
+namespace Discord.API.Rpc
+{
+    internal class VoiceDevice
+    {
+        [JsonProperty("id")]
+        public string Id { get; set; }
+        [JsonProperty("name")]
+        public string Name { get; set; }
+    }
+}