pgsql: Fix inconsistencies and typos in the tree, take 10

Fix inconsistencies and typos in the tree, take 10

This addresses some issues with unnecessary code comments, fixes various
typos in docs and comments, and removes some orphaned structures and
definitions.

Author: Alexander Lakhin
Discussion: https://postgr.es/m/9aabc775-5494-b372-8bcb-4dfc0bd37c68@gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/66bde49d96a9ddacc49dcbdf1b47b5bd6e31ead5

Modified Files
--------------
contrib/fuzzystrmatch/dmetaphone.c            |  2 +-
contrib/ltree/ltxtquery_io.c                  |  2 +-
contrib/pgcrypto/internal.c                   | 19 -------------------
contrib/pgcrypto/pgp-decrypt.c                |  7 +++++--
contrib/pgcrypto/pgp-encrypt.c                |  2 +-
contrib/pgcrypto/pgp.h                        |  2 +-
contrib/sepgsql/label.c                       |  2 +-
contrib/sepgsql/selinux.c                     |  6 ++----
contrib/spi/refint.example                    |  2 +-
doc/src/sgml/ecpg.sgml                        |  2 +-
doc/src/sgml/plpgsql.sgml                     |  8 ++++----
doc/src/sgml/sources.sgml                     |  2 +-
src/backend/access/brin/brin_revmap.c         |  7 ++++---
src/backend/access/gist/gist.c                |  4 ++--
src/backend/access/hash/hashpage.c            |  2 +-
src/backend/access/heap/heapam.c              |  2 +-
src/backend/access/nbtree/nbtutils.c          |  2 +-
src/backend/access/transam/slru.c             |  2 +-
src/backend/access/transam/xact.c             |  2 +-
src/backend/access/transam/xlogreader.c       |  2 +-
src/backend/catalog/catalog.c                 |  7 -------
src/backend/catalog/pg_constraint.c           |  2 +-
src/backend/commands/cluster.c                |  2 +-
src/backend/commands/sequence.c               |  2 +-
src/backend/executor/spi.c                    |  4 ++--
src/backend/libpq/auth.c                      |  2 +-
src/backend/libpq/pqcomm.c                    |  8 ++++----
src/backend/optimizer/path/costsize.c         |  2 +-
src/backend/partitioning/partbounds.c         |  2 +-
src/backend/partitioning/partprune.c          |  2 +-
src/backend/port/posix_sema.c                 |  2 +-
src/backend/port/win32/signal.c               |  2 +-
src/backend/postmaster/checkpointer.c         |  2 +-
src/backend/replication/basebackup.c          |  2 +-
src/backend/replication/logical/snapbuild.c   |  2 +-
src/backend/replication/logical/worker.c      |  2 +-
src/backend/replication/slot.c                |  4 ++--
src/backend/storage/file/fd.c                 |  4 ----
src/backend/storage/ipc/procarray.c           |  8 +++-----
src/backend/storage/lmgr/lwlock.c             |  4 ++--
src/backend/storage/lmgr/predicate.c          |  4 ++--
src/backend/utils/adt/pg_locale.c             |  2 +-
src/backend/utils/adt/rangetypes_typanalyze.c |  2 +-
src/backend/utils/adt/txid.c                  |  2 +-
src/backend/utils/adt/varlena.c               |  2 +-
src/backend/utils/adt/xml.c                   |  2 +-
src/backend/utils/misc/check_guc              |  2 +-
src/backend/utils/mmgr/slab.c                 |  2 +-
src/backend/utils/sort/tuplesort.c            |  2 +-
src/bin/pg_dump/pg_backup_archiver.c          |  2 +-
src/bin/pg_rewind/pg_rewind.c                 |  2 +-
src/bin/pg_upgrade/pg_upgrade.h               |  2 +-
src/include/access/brin_revmap.h              |  2 +-
src/include/access/hash_xlog.h                | 13 -------------
src/include/access/reloptions.h               |  2 +-
src/include/access/xlogreader.h               |  2 +-
src/include/catalog/namespace.h               |  2 +-
src/include/nodes/nodes.h                     |  4 ++--
src/include/port/win32_port.h                 |  2 +-
src/include/rewrite/prs2lock.h                |  2 +-
src/include/storage/standbydefs.h             |  2 +-
src/include/utils/elog.h                      |  2 +-
src/include/utils/guc.h                       |  2 +-
src/include/utils/rel.h                       |  2 +-
src/include/utils/selfuncs.h                  |  2 +-
src/interfaces/ecpg/compatlib/informix.c      |  7 +------
src/interfaces/libpq/libpq-fe.h               |  2 +-
src/pl/plpython/plpy_subxactobject.c          |  2 +-
src/port/getaddrinfo.c                        |  4 ++--
src/test/isolation/specs/sequence-ddl.spec    |  2 +-
src/test/recovery/t/012_subtransactions.pl    |  2 +-
src/test/regress/.gitignore                   |  2 +-
src/timezone/pgtz.c                           |  2 +-
src/tools/pgindent/README                     |  2 +-
74 files changed, 93 insertions(+), 141 deletions(-)