pgsql: Remove a boatload of useless definitions of 'int optreset'.

Log Message:
-----------
Remove a boatload of useless definitions of 'int optreset'.  If we
are using our own ports of getopt or getopt_long, those will define
the variable for themselves; and if not, we don't need these, because
we never touch the variable anyway.

Modified Files:
--------------
    pgsql/src/backend/postmaster:
        postmaster.c (r1.576 -> r1.577)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/postmaster.c?r1=1.576&r2=1.577)
    pgsql/src/bin/initdb:
        initdb.c (r1.169 -> r1.170)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/initdb/initdb.c?r1=1.169&r2=1.170)
    pgsql/src/bin/pg_ctl:
        pg_ctl.c (r1.109 -> r1.110)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_ctl/pg_ctl.c?r1=1.109&r2=1.110)
    pgsql/src/bin/pg_dump:
        pg_dump.c (r1.532 -> r1.533)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dump.c?r1=1.532&r2=1.533)
        pg_dumpall.c (r1.120 -> r1.121)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dumpall.c?r1=1.120&r2=1.121)
        pg_restore.c (r1.96 -> r1.97)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_restore.c?r1=1.96&r2=1.97)
    pgsql/src/bin/psql:
        startup.c (r1.155 -> r1.156)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/startup.c?r1=1.155&r2=1.156)
    pgsql/src/bin/scripts:
        common.c (r1.35 -> r1.36)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/scripts/common.c?r1=1.35&r2=1.36)
        common.h (r1.22 -> r1.23)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/scripts/common.h?r1=1.22&r2=1.23)
    pgsql/src/include:
        getopt_long.h (r1.10 -> r1.11)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/getopt_long.h?r1=1.10&r2=1.11)
    pgsql/src/port:
        getopt_long.c (r1.6 -> r1.7)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/port/getopt_long.c?r1=1.6&r2=1.7)