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Fix "set but not used" in the mvs driver. Remove dead code.
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@ -844,7 +844,6 @@ mvs_legacy_intr(device_t dev, int poll)
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struct mvs_slot *slot = &ch->slot[0]; /* PIO is always in slot 0. */
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union ccb *ccb = slot->ccb;
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enum mvs_err_type et = MVS_ERR_NONE;
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int port;
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u_int length, resid, size;
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uint8_t buf[2];
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uint8_t status, ireason;
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@ -853,7 +852,6 @@ mvs_legacy_intr(device_t dev, int poll)
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status = mvs_getstatus(dev, 1);
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if (slot->state < MVS_SLOT_RUNNING)
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return;
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port = ccb->ccb_h.target_id & 0x0f;
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/* Wait a bit for late !BUSY status update. */
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if (status & ATA_S_BUSY) {
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if (poll)
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