Eliminate some unused declarations.
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@ -466,10 +466,7 @@ extern int dirtybufthresh;
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extern int bdwriteskip;
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extern int dirtybufferflushes;
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extern int altbufferflushes;
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extern int buf_maxio; /* nominal maximum I/O for buffer */
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extern struct buf *buf; /* The buffer headers. */
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extern char *buffers; /* The buffer contents. */
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extern int bufpages; /* Number of memory pages in the buffer pool. */
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extern struct buf *swbuf; /* Swap I/O buffer headers. */
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extern int nswbuf; /* Number of swap I/O buffer headers. */
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extern int cluster_pbuf_freecnt; /* Number of pbufs for clusters */
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