Remove calls to Console.WriteLine to decrease app size

[rolfbjarne]

Description

It seems there are a few calls to Console.WriteLine in MAUI from:

• Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
  • System.Boolean Microsoft.Maui.Handlers.WebViewHandler::LoadFile(System.String)
• Microsoft.Maui.Essentials, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
  • System.Boolean Microsoft.Maui.Authentication.WebAuthenticatorImplementation::OpenUrlCallback(System.Uri)

The whole Console machinery is quite expensive (size-wise), and removing the Console.WriteLine in these calls is likely to provide a significant size improvement for iOS apps.

For a sample test app here are some rough numbers:

• System.Console.aotdata.arm64: 46.432 bytes
• System.Console.dll: 9.728 bytes
• Object files for System.Console.dll: 415.748 bytes
• Total: 471.908 bytes

Note that this does not take into account any additional savings where API in other assemblies can be removed because System.Console was the only caller.

Public API Changes

N/A

Intended Use-Case

Size-optimized release builds.

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.