pgbouncer - pgbouncer: remove too paranoid fd cleanup

Log Message:
-----------
remove too paranoid fd cleanup

Modified Files:
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pgbouncer/src:
main.c (r1.16 -> r1.17)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/main.c.diff?r1=1.16&r2=1.17)
system.h (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/system.h.diff?r1=1.4&r2=1.5)