Обсуждение: pgsql: Remove Windows-specific definition of S_ISDIR().

Log Message:
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Remove Windows-specific definition of S_ISDIR().  This should not be here;
if there are any Windows configurations where port/win32.h fails to
provide the macro, it should be fixed in the latter file not here.

Modified Files:
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    pgsql/src/bin/psql:
        copy.c (r1.79 -> r1.80)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/copy.c?r1=1.79&r2=1.80)