pgsql: Remove superfluous variable assignment

Remove superfluous variable assignment

Commit a4205fa00 moved setting conn to NULL directly after the call
to PQfinish, but the original conn = NULL; remained a few lines down.
Fix by removing the superfluous assignment.

Author: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>
Discussion: /messages/by-id/CALj2ACVRiNvMDHYQGiRrGs2Z9dOydfLh2MymEk9i8CSn23UtCg@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/ba1b763102b89bca2711e921cf3083d8487b8c96

Modified Files
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src/bin/pg_basebackup/pg_receivewal.c | 2 --
1 file changed, 2 deletions(-)