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: https://postgr.es/m/CALj2ACVRiNvMDHYQGiRrGs2Z9dOydfLh2MymEk9i8CSn23UtCg@mail.gmail.com