nfsd: trace: remove redundant stateid even deleg_recall

Since commit e56dc9e2 ("nfsd: remove fault injection code") remove
all nfsd_recall_delegations codes,
we don't need trace_nfsd_deleg_recall any more.

Signed-off-by: Chen Hanxiao <chenhx.fnst@fujitsu.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>