nfsd: get rid of unused macro definition
nfsd: get rid of unused macro definition

Since defined in Linux-2.6.12-rc2, READTIME has not been used.

Signed-off-by: Kinglong Mee <16a37b8b71ffafad4e89ce1ff841da282b29daf2@gmail.com>
Signed-off-by: J. Bruce Fields <51738506c1b2ccb0761f23bdc612c93babf738ea@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs