nfs: remove unused writeverf code
authorWeston Andros Adamson <dros@primarydata.com>
Mon, 9 Jun 2014 15:48:36 +0000 (11:48 -0400)
committerTrond Myklebust <trond.myklebust@primarydata.com>
Tue, 24 Jun 2014 22:47:00 +0000 (18:47 -0400)
Remove duplicate writeverf structure from merge of nfs_pgio_header and
nfs_pgio_data and remove writeverf related flags and logic to handle
more than one RPC per nfs_pgio_header.

Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

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