Remove separate strdup.h header file; it's redundant with port.h.

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

Commit: 9ba40653129f0c538ac8d4f0488512a10819567f
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2006-09-27T15:41:24Z
Releases: 8.2.0
Remove separate strdup.h header file; it's redundant with port.h.

Files