pgsql: Revert "Add USER SET parameter values for pg_db_role_setting"

Revert "Add USER SET parameter values for pg_db_role_setting"

This reverts commit 096dd80f3ccc and its fixups beecbe8e5001, afdd9f7f0e00,
529da086ba, db93e739ac61.

Catversion is bumped.

Discussion: https://postgr.es/m/d46f9265-ff3c-6743-2278-6772598233c2%40pgmasters.net

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/b9a7a822723aebb16cbe7e5fb874e5124745b07e

Modified Files
--------------
doc/src/sgml/catalogs.sgml                         |  10 --
doc/src/sgml/ref/alter_database.sgml               |  15 +-
doc/src/sgml/ref/alter_role.sgml                   |  22 +--
doc/src/sgml/ref/alter_user.sgml                   |   2 +-
doc/src/sgml/ref/psql-ref.sgml                     |   7 -
src/backend/catalog/pg_db_role_setting.c           |  46 +-----
src/backend/catalog/pg_proc.c                      |   1 -
src/backend/commands/functioncmds.c                |   4 +-
src/backend/parser/gram.y                          |  20 ---
src/backend/utils/adt/arrayfuncs.c                 |   1 -
src/backend/utils/fmgr/fmgr.c                      |   1 -
src/backend/utils/misc/guc.c                       | 162 +++------------------
src/backend/utils/misc/guc_funcs.c                 |  12 +-
src/bin/pg_dump/dumputils.c                        |   5 -
src/bin/pg_dump/dumputils.h                        |   1 -
src/bin/pg_dump/pg_dump.c                          |  27 +---
src/bin/pg_dump/pg_dumpall.c                       |  12 +-
src/bin/psql/describe.c                            |  11 +-
src/bin/psql/tab-complete.c                        |   4 -
src/include/catalog/catversion.h                   |   2 +-
src/include/catalog/pg_db_role_setting.h           |   2 -
src/include/nodes/parsenodes.h                     |   1 -
src/include/utils/guc.h                            |  11 +-
src/test/modules/Makefile                          |   1 -
src/test/modules/meson.build                       |   1 -
.../modules/test_pg_db_role_setting/.gitignore     |   4 -
src/test/modules/test_pg_db_role_setting/Makefile  |  26 ----
.../expected/test_pg_db_role_setting.out           | 143 ------------------
.../modules/test_pg_db_role_setting/meson.build    |  34 -----
.../sql/test_pg_db_role_setting.sql                |  63 --------
.../test_pg_db_role_setting--1.0.sql               |   7 -
.../test_pg_db_role_setting.c                      |  57 --------
.../test_pg_db_role_setting.control                |   7 -
src/test/regress/expected/psql.out                 |   6 +-
34 files changed, 51 insertions(+), 677 deletions(-)