svcrdma: Remove unused READ_DONE context flags bit

The RDMACTXT_F_READ_DONE bit is not longer used. Remove it.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>

include/linux/sunrpc/svc_rdma.h

@@ -85,7 +85,6 @@ struct svc_rdma_op_ctxt {
 	struct page *pages[RPCSVC_MAXPAGES];
 };
 
-#define RDMACTXT_F_READ_DONE	1
 #define RDMACTXT_F_LAST_CTXT	2
 
 struct svcxprt_rdma {

net/sunrpc/xprtrdma/svc_rdma_recvfrom.c

@@ -325,7 +325,6 @@ static int rdma_read_xdr(struct svcxprt_rdma *xprt,
 		}
 		ctxt->next = NULL;
 		ctxt->direction = DMA_FROM_DEVICE;
-		clear_bit(RDMACTXT_F_READ_DONE, &ctxt->flags);
 		clear_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
 
 		/* Prepare READ WR */

net/sunrpc/xprtrdma/svc_rdma_transport.c

@@ -353,7 +353,6 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
 		case IB_WR_RDMA_READ:
 			if (test_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags)) {
 				set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
-				set_bit(RDMACTXT_F_READ_DONE, &ctxt->flags);
 				spin_lock_bh(&xprt->sc_read_complete_lock);
 				list_add_tail(&ctxt->dto_q,
 					      &xprt->sc_read_complete_q);