pgsql: VACUUM VERBOSE: Don't report "pages removed".

VACUUM VERBOSE: Don't report "pages removed".

It doesn't make any sense to report this information, since VACUUM
VERBOSE reports on heap relation truncation directly. This was an
oversight in commit 7ab96cf6, which made VACUUM VERBOSE output a little
more consistent with nearby autovacuum-specific log output. Adjust
comments that describe how this is supposed to work in passing.

Also bring truncation-related VACUUM VERBOSE output in line with the
convention established for VACUUM VERBOSE output by commit f4f4a649.

Author: Peter Geoghegan <pg(at)bowt(dot)ie>
Backpatch: 14-, where VACUUM VERBOSE's output changed.

Branch
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REL_14_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/0d892cf73a13b3a32af438a059a168e711aa0a7f

Modified Files
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src/backend/access/heap/vacuumlazy.c | 36 +++++++++++++++++-------------------
1 file changed, 17 insertions(+), 19 deletions(-)