pgsql: Remove QNX port.

Log Message:
-----------
Remove QNX port.

Modified Files:
--------------
pgsql:
configure (r1.469 -> r1.470)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.diff?r1=1.469&r2=1.470)
configure.in (r1.439 -> r1.440)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.in.diff?r1=1.439&r2=1.440)
pgsql/doc/src/sgml:
installation.sgml (r1.250 -> r1.251)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/installation.sgml.diff?r1=1.250&r2=1.251)
runtime.sgml (r1.359 -> r1.360)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/runtime.sgml.diff?r1=1.359&r2=1.360)
pgsql/src/backend:
Makefile (r1.113 -> r1.114)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/Makefile.diff?r1=1.113&r2=1.114)
pgsql/src/backend/bootstrap:
Makefile (r1.32 -> r1.33)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/bootstrap/Makefile.diff?r1=1.32&r2=1.33)
pgsql/src/backend/port:
Makefile (r1.20 -> r1.21)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/Makefile.diff?r1=1.20&r2=1.21)
pgsql/src/backend/utils/misc:
ps_status.c (r1.27 -> r1.28)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/ps_status.c.diff?r1=1.27&r2=1.28)
pgsql/src/backend/utils/sort:
tuplesort.c (r1.56 -> r1.57)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/sort/tuplesort.c.diff?r1=1.56&r2=1.57)
pgsql/src/bin/ipcclean:
ipcclean.sh (r1.15 -> r1.16)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/ipcclean/ipcclean.sh.diff?r1=1.15&r2=1.16)
pgsql/src/include:
pg_config_manual.h (r1.18 -> r1.19)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/pg_config_manual.h.diff?r1=1.18&r2=1.19)
pgsql/src/include/storage:
s_lock.h (r1.146 -> r1.147)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/storage/s_lock.h.diff?r1=1.146&r2=1.147)
pgsql/src/pl/plpgsql/src:
Makefile (r1.27 -> r1.28)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpgsql/src/Makefile.diff?r1=1.27&r2=1.28)
pgsql/src/port:
isinf.c (r1.7 -> r1.8)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/port/isinf.c.diff?r1=1.7&r2=1.8)
pgsql/src/test/regress:
pg_regress.sh (r1.62 -> r1.63)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/pg_regress.sh.diff?r1=1.62&r2=1.63)
resultmap (r1.79 -> r1.80)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/resultmap.diff?r1=1.79&r2=1.80)

Removed Files:
-------------
pgsql/doc:
FAQ_QNX4
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/FAQ_QNX4)
pgsql/src/backend/port/dynloader:
qnx4.c
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/dynloader/qnx4.c)
qnx4.h
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/dynloader/qnx4.h)
pgsql/src/backend/port/qnx4:
Makefile
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/qnx4/Makefile)
ipc.h
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/qnx4/ipc.h)
isnan.c
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/qnx4/isnan.c)
sem.c
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/qnx4/sem.c)
sem.h
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/qnx4/sem.h)
shm.c
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/qnx4/shm.c)
shm.h
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/qnx4/shm.h)
tstsem.c
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/qnx4/tstsem.c)
tstshm.c
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/qnx4/tstshm.c)
pgsql/src/makefiles:
Makefile.qnx4
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/makefiles/Makefile.qnx4)
pgsql/src/template:
qnx4
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/template/qnx4)
pgsql/src/test/regress/expected:
float8-exp-three-digits.out
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/float8-exp-three-digits.out)