Changes regarding the removal of the user tokentype

src/Discord.Net.Rest/DiscordRestApiClient.cs

@@ -79,7 +79,6 @@ namespace Discord.API
         {
             return tokenType switch
             {
-                default(TokenType) => token,
                 TokenType.Bot => $"Bot {token}",
                 TokenType.Bearer => $"Bearer {token}",
                 _ => throw new ArgumentException(message: "Unknown OAuth token type.", paramName: nameof(tokenType)),

test/Discord.Net.Tests.Unit/TokenUtilsTests.cs

@@ -127,8 +127,6 @@ namespace Discord
         ///     The <see cref="TokenType.User"/> type is treated as an invalid <see cref="TokenType"/>.
         /// </remarks>
         [Theory]
-        // TokenType.User
-        [InlineData(0)]
         // out of range TokenType
         [InlineData(-1)]
         [InlineData(4)]