pgsql: Remove redundant port number check

Remove redundant port number check

pg_basebackup doesn't need to police the format of port numbers.
libpq already does that.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/7f1f1bfdbb199a003b9bef5dc946eb2c1c38e4c2

Modified Files
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src/bin/pg_basebackup/pg_basebackup.c | 6 ------
1 files changed, 0 insertions(+), 6 deletions(-)