pgsql: Remove junk in test file

Remove junk in test file

Remove a redundant and failing command, probably a typo.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/eb2c8a8f816b6c411047eeab7a326e8356a2c0a8

Modified Files
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src/test/modules/unsafe_tests/expected/rolenames.out | 2 --
src/test/modules/unsafe_tests/sql/rolenames.sql | 1 -
2 files changed, 3 deletions(-)