w32:common: Take care of possible race on startup under Windows.
* common/asshelp.c (start_new_service) [HAVE_W32_SYSTEM]: Remove the socket before starting the daemon.
Forward port of the 2.2 commit:
7e2133bc16f86e6d8230688f500e95fd3bdbd28c
- GnuPG-bug-id: T7829
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>