Have the windows implementation of xDelete return SQLITE_IOERR_DELETE_NOENT
if the file to be deleted does not exist.  The unix implementation was
previously modified to behave this way.  The current changes simply brings
the two implementations into alignment.

FossilOrigin-Name: d4c36d4991b048133efb21b251ab57fa66764d9d

• manifest[diff]
• manifest.uuid[diff]
• src/os_win.c[diff]