diff --git a/MailKit/Net/Imap/ImapFolderFetch.cs b/MailKit/Net/Imap/ImapFolderFetch.cs
index eecc51b919..7377b2d731 100644
--- a/MailKit/Net/Imap/ImapFolderFetch.cs
+++ b/MailKit/Net/Imap/ImapFolderFetch.cs
@@ -199,16 +199,6 @@ static async Task SkipParenthesizedListAsync (ImapEngine engine, CancellationTok
 			} while (depth > 0);
 		}
 
-		static Task SkipParenthesizedListAsync (ImapEngine engine, bool doAsync, CancellationToken cancellationToken)
-		{
-			if (doAsync)
-				return SkipParenthesizedListAsync (engine, cancellationToken);
-
-			SkipParenthesizedList (engine, cancellationToken);
-
-			return Task.CompletedTask;
-		}
-
 		static DateTimeOffset? ReadDateTimeOffsetToken (ImapEngine engine, string atom, CancellationToken cancellationToken)
 		{
 			var token = engine.ReadToken (cancellationToken);
diff --git a/MailKit/Net/Imap/ImapUtils.cs b/MailKit/Net/Imap/ImapUtils.cs
index f495ed5adf..2a0e6222d8 100644
--- a/MailKit/Net/Imap/ImapUtils.cs
+++ b/MailKit/Net/Imap/ImapUtils.cs
@@ -951,16 +951,6 @@ internal static async ValueTask<string> ReadStringTokenAsync (ImapEngine engine,
 			}
 		}
 
-		internal static ValueTask<string> ReadStringTokenAsync (ImapEngine engine, string format, bool doAsync, CancellationToken cancellationToken)
-		{
-			if (doAsync)
-				return ReadStringTokenAsync (engine, format, cancellationToken);
-
-			var value = ReadStringToken (engine, format, cancellationToken);
-
-			return new ValueTask<string> (value);
-		}
-
 		internal static string ReadNStringToken (ImapEngine engine, string format, bool rfc2047, CancellationToken cancellationToken)
 		{
 			var token = engine.ReadToken (cancellationToken);
@@ -1011,16 +1001,6 @@ internal static async ValueTask<string> ReadNStringTokenAsync (ImapEngine engine
 			return value;
 		}
 
-		static ValueTask<string> ReadNStringTokenAsync (ImapEngine engine, string format, bool rfc2047, bool doAsync, CancellationToken cancellationToken)
-		{
-			if (doAsync)
-				return ReadNStringTokenAsync (engine, format, rfc2047, cancellationToken);
-
-			var value = ReadNStringToken (engine, format, rfc2047, cancellationToken);
-
-			return new ValueTask<string> (value);
-		}
-
 		static uint ParseNumberToken (ImapToken token, string format)
 		{
 			// Note: this is a work-around for broken IMAP servers that return negative integer values for things