Remove RPC from main distribution (#925)

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

@@ -0,0 +1,14 @@
+using Newtonsoft.Json;
+
+namespace Discord.API.Rpc
+{
+    internal class VoiceDeviceSettings
+    {
+        [JsonProperty("device_id")]
+        public Optional<string> DeviceId { get; set; }
+        [JsonProperty("volume")]
+        public Optional<float> Volume { get; set; }
+        [JsonProperty("available_devices")]
+        public Optional<VoiceDevice[]> AvailableDevices { get; set; }
+    }
+}