pgsql: Remove obsolete cast

Remove obsolete cast

The upstream timezone code uses a bool variable as an array subscript.
Back when PostgreSQL's bool was char, this would have caused a warning
from gcc -Wchar-subscripts, which is included in -Wall. But this has
been obsolete since probably commit d26a810ebf9, but certainly since
bool is now the C standard bool. So we can remove this deviation from
the upstream code, to make future code merges simpler.

Reviewed-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Discussion: https://www.postgresql.org/message-id/flat/9ad2749f-77ab-4ecb-a321-1ca915480b05%40eisentraut.org

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/b5623cc5e4197b59d37b869fbd92c1778be0438e

Modified Files
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src/timezone/localtime.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)