Remove the redundant #if UNIX check from the Unix only code (#28120)

src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostRawUserInterface.cs

@@ -1617,13 +1617,11 @@ namespace Microsoft.PowerShell
                 }
             }
 
-#if UNIX
             // Make sure that the physical cursor position matches where we think it is.
             // This is a problem on *nix, because input that the user types is echoed
             // and that moves the cursor. As a consequence, the cursor needs to be repositioned
             // before we update the screen.
             CursorPosition = origin;
-#endif
 
             // iterate through the buffer to set
             foreach (var charitem in contents)