Remove some dead code, simplify calling convention.

Tom Lane <tgl@sss.pgh.pa.us>

Commit: bbb7b6f699492b00c2cecae7ecd60e14b68dbdd8
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2001-06-13T18:56:30Z
Releases: 7.2.1
Remove some dead code, simplify calling convention.

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