s4/smdb: cppcheck: fix nullPointer: Possible null pointer dereference warning.
Insert unreachable return to satisfy the following warnings
source4/smbd/server.c:692: warning: nullPointer: Possible null pointer dereference: state <--[cppcheck]
source4/smbd/server.c:694: warning: nullPointer: Possible null pointer dereference: state <--[cppcheck]
source4/smbd/server.c:699: warning: nullPointer: Possible null pointer dereference: state <--[cppcheck]
source4/smbd/server.c:758: warning: nullPointer: Possible null pointer dereference: state <--[cppcheck]
source4/smbd/server.c:789: warning: nullPointer: Possible null pointer dereference: state <--[cppcheck]
source4/smbd/server.c:849: warning: nullPointer: Possible null pointer dereference: state <--[cppcheck]
source4/smbd/server.c:866: warning: nullPointer: Possible null pointer dereference: state <--[cppcheck]
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>