pgsql: Remove useless if condition

Remove useless if condition

We can call GetAttributeCompression() with a NULL argument.  It
handles that internally already.  This change makes all the callers of
GetAttributeCompression() uniform.

Reviewed-by: Alvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://www.postgresql.org/message-id/flat/52a125e4-ff9a-95f5-9f61-b87cf447e4da@eisentraut.org

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/6844d3275ac6b3c35d824f49362d3fe59b30f26b

Modified Files
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src/backend/commands/tablecmds.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)