pgsql: Fix assorted inconsistencies.

Fix assorted inconsistencies.

There were a number of issues in the recent commits which include typos,
code and comments mismatch, leftover function declarations.  Fix them.

Reported-by: Alexander Lakhin
Author: Alexander Lakhin, Amit Kapila and Amit Langote
Reviewed-by: Amit Kapila
Discussion: https://postgr.es/m/ef0c0232-0c1d-3a35-63d4-0ebd06e31387@gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/92c4abc73693690ce9ff13ede160f0dcb0a2de7b

Modified Files
--------------
src/backend/access/common/reloptions.c             |  3 ---
src/backend/access/heap/heapam.c                   | 15 +++------------
src/backend/access/heap/heapam_handler.c           |  2 +-
src/backend/access/heap/rewriteheap.c              |  2 +-
src/backend/access/transam/xact.c                  |  4 ++--
src/backend/access/transam/xlog.c                  |  2 --
src/backend/access/transam/xloginsert.c            |  2 +-
src/backend/commands/copy.c                        |  1 -
src/backend/commands/tablecmds.c                   |  6 +++---
src/backend/executor/execTuples.c                  |  2 +-
src/backend/executor/nodeModifyTable.c             |  4 +++-
src/backend/lib/integerset.c                       |  2 +-
src/backend/postmaster/postmaster.c                |  2 +-
src/backend/storage/smgr/md.c                      |  2 +-
src/include/access/heapam.h                        |  2 --
src/include/access/tableam.h                       |  4 ++--
src/include/executor/executor.h                    |  1 -
src/include/storage/sync.h                         |  2 +-
src/test/modules/test_integerset/test_integerset.c |  2 +-
19 files changed, 22 insertions(+), 38 deletions(-)