pgsql: initdb: Remove obsolete locale handling

initdb: Remove obsolete locale handling

The method of passing LC_COLLATE and LC_CTYPE to the backend during
initdb is obsolete as of 61d967498802ab86d8897cb3c61740d7e9d712f6.
This can all be removed.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: /messages/by-id/eeaf2f99-a1a6-8aca-3f43-9ab0b2fb112a@2ndquadrant.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/fded4773eb60541c6e7dbcf09c9bcb1cd36a063b

Modified Files
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src/backend/main/main.c | 38 ++++++++++----------------------------
src/bin/initdb/initdb.c | 14 --------------
2 files changed, 10 insertions(+), 42 deletions(-)