pgsql: Remove incorrect HINT for use of ALTER FOREIGN TABLE on the wron

Remove incorrect HINT for use of ALTER FOREIGN TABLE on the wrong relkind.

Per discussion, removing the hint seems better than correcting it because
the adjacent analogous cases in RenameRelation don't have any hints, and
nobody seems to have missed 'em.

Shigeru Hanada

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/6dab96abaa8bd6775658d26517e288f4d5f6448f

Modified Files
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src/backend/commands/tablecmds.c |    3 +--
1 files changed, 1 insertions(+), 2 deletions(-)