gf_w32.c: fix/remove some dead assignments
gf_w32.c: fix/remove some dead assignments

Signed-off-by: Danny Al-Gaaf <473e39ac77cf392f0dd9bacde8409de76c14d006@bisect.de>

zzxuanyuan/gf-complete,zzxuanyuan/gf-complete,cedricde/gf-complete,cedricde/gf-complete,ceph/gf-complete,ceph/gf-complete,ceph/gf-complete