pgsql: Fix ICU locale option handling in CREATE DATABASE

Fix ICU locale option handling in CREATE DATABASE

The code took the LOCALE option as the default/fallback for
ICU_LOCALE, but this was neither documented nor intended, so remove
it.  (It was probably left in from an earlier patch version.)

Reported-by: Marina Polyakova <m.polyakova@postgrespro.ru>
Discussion:
https://www.postgresql.org/message-id/flat/f385ba25e7f8be427b8c582e5cca7d79%40postgrespro.ru#515a31c5429d6d37ad1d5c9d66962a1e

Branch
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REL_15_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/f02147bd237eb59d908ed3166895081ba17df4a1

Modified Files
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src/backend/commands/dbcommands.c | 5 -----
1 file changed, 5 deletions(-)