pgsql: Disable one more set of tests from c8841199509.

Disable one more set of tests from c8841199509.

Discussion: https://postgr.es/m/20191004222437.45qmglpto43pd3jb@alap3.anarazel.de
Backpatch: 9.6-, just like c8841199509 and 6e61d75f525

Branch
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REL_12_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/9051f62ed7eff9eb01e4fa7a37a6471271d10f5b

Modified Files
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.../isolation/expected/eval-plan-qual-trigger.out  | 166 ---------------------
.../isolation/specs/eval-plan-qual-trigger.spec    |  22 +--
2 files changed, 11 insertions(+), 177 deletions(-)