pgsql: Remove code relevant to OpenSSL 0.9.6 in be/fe-secure-openssl.c

Remove code relevant to OpenSSL 0.9.6 in be/fe-secure-openssl.c

HEAD supports OpenSSL 0.9.8 and newer versions, and this code likely got
forgotten as its surrounding comments mention an incorrect version
number.

Author: Michael Paquier
Reviewed-by: Peter Eisentraut
Discussion: /messages/by-id/20190927032311.GB8485@paquier.xyz

Branch
------
master

Details
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https://git.postgresql.org/pg/commitdiff/55282fa20f46c193bd4a89ad5bcd048048a8734d

Modified Files
--------------
src/backend/libpq/be-secure-openssl.c | 9 ---------
src/interfaces/libpq/fe-secure-openssl.c | 12 ------------
2 files changed, 21 deletions(-)