Dir.realpathW: remove redundant buffer/copy

This same change was applied in 69007f096177143086e28da0dc1a0eff4efcc52c but accidentally reverted in 7bf740ee718f4b6109cd9fe7014d1784d48ada48
d629a146f5Ryan Liptak committed on 10/10/2025, 7:13:35 PMparent9aeabad
1 file changedLine totals unavailable