pgsql: Remove our own definition of NULL

Remove our own definition of NULL

Surely everyone has that by now.

Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
Reviewed-by: Ryan Murphy <ryanfmurphy@gmail.com>

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/ba26f5cf768a31e0cbdf5eb8675ee187ad35fd0b

Modified Files
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src/include/c.h | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)

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