s3/lib/smbconf: clang: 'Value stored during its initialization is never read'

s3/lib/smbconf: clang: 'Value stored during its initialization is never read'

Fixes:

source3/lib/smbconf/smbconf_reg.c:123:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
        WERROR werr = WERR_OK;
               ^~~~   ~~~~~~~
source3/lib/smbconf/smbconf_reg.c:178:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
        WERROR werr = WERR_OK;
               ^~~~   ~~~~~~~
source3/lib/smbconf/smbconf_reg.c:444:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
        WERROR werr = WERR_OK;
               ^~~~   ~~~~~~~
source3/lib/smbconf/smbconf_reg.c:583:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
        WERROR werr = WERR_OK;
               ^~~~   ~~~~~~~
source3/lib/smbconf/smbconf_reg.c:712:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
        WERROR werr = WERR_OK;
               ^~~~   ~~~~~~~
source3/lib/smbconf/smbconf_reg.c:995:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
        WERROR werr = WERR_OK;
               ^~~~   ~~~~~~~
source3/lib/smbconf/smbconf_reg.c:1103:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
        WERROR werr = WERR_OK;
               ^~~~   ~~~~~~~
7 warnings generated.

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Autobuild-User(master): Gary Lockyer <gary@samba.org>
Autobuild-Date(master): Wed Jul 17 00:07:48 UTC 2019 on sn-devel-184