pgsql: Remove BEOS port.

Log Message:
-----------
Remove BEOS port.

Modified Files:
--------------
    pgsql:
        configure (r1.470 -> r1.471)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.diff?r1=1.470&r2=1.471)
        configure.in (r1.440 -> r1.441)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.in.diff?r1=1.440&r2=1.441)
    pgsql/doc/src/sgml:
        installation.sgml (r1.251 -> r1.252)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/installation.sgml.diff?r1=1.251&r2=1.252)
        runtime.sgml (r1.360 -> r1.361)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/runtime.sgml.diff?r1=1.360&r2=1.361)
    pgsql/src:
        Makefile.shlib (r1.101 -> r1.102)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/Makefile.shlib.diff?r1=1.101&r2=1.102)
    pgsql/src/backend/main:
        main.c (r1.98 -> r1.99)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/main/main.c.diff?r1=1.98&r2=1.99)
    pgsql/src/backend/port:
        Makefile (r1.21 -> r1.22)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/Makefile.diff?r1=1.21&r2=1.22)
    pgsql/src/backend/postmaster:
        fork_process.c (r1.4 -> r1.5)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/fork_process.c.diff?r1=1.4&r2=1.5)
    pgsql/src/backend/storage/lmgr:
        proc.c (r1.171 -> r1.172)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/storage/lmgr/proc.c.diff?r1=1.171&r2=1.172)
    pgsql/src/backend/tcop:
        postgres.c (r1.475 -> r1.476)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/tcop/postgres.c.diff?r1=1.475&r2=1.476)
    pgsql/src/backend/utils/init:
        miscinit.c (r1.151 -> r1.152)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/init/miscinit.c.diff?r1=1.151&r2=1.152)
    pgsql/src/bin/initdb:
        initdb.c (r1.104 -> r1.105)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/initdb/initdb.c.diff?r1=1.104&r2=1.105)
    pgsql/src/bin/pg_ctl:
        pg_ctl.c (r1.62 -> r1.63)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_ctl/pg_ctl.c.diff?r1=1.62&r2=1.63)
    pgsql/src/bin/pg_resetxlog:
        pg_resetxlog.c (r1.38 -> r1.39)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_resetxlog/pg_resetxlog.c.diff?r1=1.38&r2=1.39)
    pgsql/src/include:
        c.h (r1.193 -> r1.194)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/c.h.diff?r1=1.193&r2=1.194)
        pg_config.h.in (r1.88 -> r1.89)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/pg_config.h.in.diff?r1=1.88&r2=1.89)
        pg_config_manual.h (r1.19 -> r1.20)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/pg_config_manual.h.diff?r1=1.19&r2=1.20)
    pgsql/src/interfaces/ecpg/include:
        ecpglib.h (r1.64 -> r1.65)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/include/ecpglib.h.diff?r1=1.64&r2=1.65)
    pgsql/src/port:
        noblock.c (r1.8 -> r1.9)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/port/noblock.c.diff?r1=1.8&r2=1.9)
    pgsql/src/test/regress:
        pg_regress.sh (r1.63 -> r1.64)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/pg_regress.sh.diff?r1=1.63&r2=1.64)

Removed Files:
-------------
    pgsql/src/backend/port/beos:
        Makefile
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/beos/Makefile)
        sem.c
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/beos/sem.c)
        shm.c
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/beos/shm.c)
        support.c
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/beos/support.c)
    pgsql/src/backend/port/dynloader:
        beos.c
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/dynloader/beos.c)
        beos.h
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/dynloader/beos.h)
    pgsql/src/include/port:
        beos.h
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/port/beos.h)
    pgsql/src/makefiles:
        Makefile.beos
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/makefiles/Makefile.beos)
    pgsql/src/template:
        beos
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/template/beos)