pgsql: Remove unused parameters

Remove unused parameters

Remove various unused parameters in pg_dump code.  These have all
become unused over time or were never used.

Discussion: https://www.postgresql.org/message-id/flat/511bb100-f829-ba21-2f10-9f952ec06ead%402ndquadrant.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/8354e7b27ebec8bf78088e22b5b9c1caa46db8e1

Modified Files
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src/bin/pg_dump/dumputils.c          |  2 +-
src/bin/pg_dump/dumputils.h          |  2 +-
src/bin/pg_dump/pg_backup_archiver.c | 20 +++++-----
src/bin/pg_dump/pg_backup_tar.c      |  8 ++--
src/bin/pg_dump/pg_dump.c            | 71 ++++++++++++++----------------------
src/bin/pg_dump/pg_dumpall.c         |  2 +-
6 files changed, 44 insertions(+), 61 deletions(-)