Remove WM_UNICHAR as unused. A remnant from the Carbon platform layer.
Remove WM_UNICHAR as unused. A remnant from the Carbon platform layer.

R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone