pgsql: Revert part of recent include patch not ready for application.

Log Message:
-----------
Revert part of recent include patch not ready for application.

Modified Files:
--------------
pgsql/src/interfaces/libpq:
fe-auth.c (r1.117 -> r1.118)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-auth.c.diff?r1=1.117&r2=1.118)
fe-print.c (r1.69 -> r1.70)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-print.c.diff?r1=1.69&r2=1.70)
fe-protocol2.c (r1.23 -> r1.24)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-protocol2.c.diff?r1=1.23&r2=1.24)
fe-secure.c (r1.82 -> r1.83)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-secure.c.diff?r1=1.82&r2=1.83)
pgsql/src/port:
strdup.c (r1.10 -> r1.11)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/port/strdup.c.diff?r1=1.10&r2=1.11)
pgsql/src/timezone:
pgtz.c (r1.41 -> r1.42)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/pgtz.c.diff?r1=1.41&r2=1.42)
strftime.c (r1.9 -> r1.10)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/strftime.c.diff?r1=1.9&r2=1.10)
pgsql/src/tutorial:
funcs_new.c (r1.9 -> r1.10)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/tutorial/funcs_new.c.diff?r1=1.9&r2=1.10)