[Windows] Fix unreachable code in DisplayServer

[AThousandShips]

Regression from:

• [Windows] Offload RenderingDevice creation test to subprocess. #103245

Unsure why these weren't caught by CI, will see if I can check some settings to try and catch these

[AThousandShips]

Fixing the error on Web right now

[bruvzg]

Unsure why these weren't caught by CI, will see if I can check some settings to try and catch these

What's the config/compiler that's catching these? I'm always building with warnings=extra werror=yes and not getting any errors.

[AThousandShips]

Catching it with MSVC, with dev_build=Yes dev_mode=Yes

[AThousandShips]

Running Windows CI with dev_build=Yes catches the issue in CI, but not just with the default flags, unsure why this is, could be a bug in how things get configured

[akien-mga]

Running Windows CI with dev_build=Yes catches the issue in CI, but not just with the default flags, unsure why this is, could be a bug in how things get configured

Might be because CI builds with debug_symbols=no. MSVC might be able to catch more warnings when debug symbols are being generated, I don't know.

[Repiteo]

Thanks!

[AThousandShips]

Thank you!