Remove unnecessary CA2022 suppressions (#48766)

Author: Winniexu01

src/RazorSdk/Tool/Client.cs

@@ -171,9 +171,9 @@ public override async Task WaitForDisconnectAsync(CancellationToken cancellation
                     try
                     {
                         ServerLogger.Log($"Before poking pipe {Identifier}.");
-#pragma warning disable CA2022 // Avoid inexact read
-                        await Stream.ReadAsync(Array.Empty<byte>(), 0, 0, cancellationToken);
-#pragma warning restore CA2022
+                        // Stream.ReadExactlyAsync with a zero-length buffer will not update the state of the pipe.
+                        // We need to trigger a state update without actually reading the data.
+                        _ = await Stream.ReadAsync(Array.Empty<byte>(), 0, 0, cancellationToken);
                         ServerLogger.Log($"After poking pipe {Identifier}.");
                     }
                     catch (OperationCanceledException)

src/RazorSdk/Tool/ConnectionHost.cs

@@ -107,9 +107,9 @@ public override async Task WaitForDisconnectAsync(CancellationToken cancellation
                     try
                     {
                         ServerLogger.Log($"Before poking pipe {Identifier}.");
-#pragma warning disable CA2022 // Avoid inexact read
-                        await Stream.ReadAsync(Array.Empty<byte>(), 0, 0, cancellationToken);
-#pragma warning restore CA2022
+                        // Stream.ReadExactlyAsync with a zero-length buffer will not update the state of the pipe.
+                        // We need to trigger a state update without actually reading the data.
+                        _ = await Stream.ReadAsync(Array.Empty<byte>(), 0, 0, cancellationToken);
                         ServerLogger.Log($"After poking pipe {Identifier}.");
                     }
                     catch (OperationCanceledException)