pgsql: Fix up compiler warnings/errors from f4fb45d15. - Mailing list pgsql-committers

Fix up compiler warnings/errors from f4fb45d15.

Per early buildfarm returns.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/cc7401d5ca498a84d9b47fd2e01cebd8e830e558

Modified Files
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src/backend/parser/parse_expr.c   |  4 ----
src/backend/utils/adt/ruleutils.c | 24 +++++++++++++-----------
2 files changed, 13 insertions(+), 15 deletions(-)