Thread: pgsql: Remove unstable, unnecessary test; fix typo

Remove unstable, unnecessary test; fix typo

Commit ff9f111bce24 added some test code that's unportable and doesn't
add meaningful coverage.  Remove it rather than try and get it to work
everywhere.

While at it, fix a typo in a log message added by the aforementioned
commit.

Backpatch to 14.

Discussion: https://postgr.es/m/3000074.1632947632@sss.pgh.pa.us

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/d186d233dfde4afb9dff346e13c8adaf4deec6b3

Modified Files
--------------
src/backend/access/transam/xlog.c               |   2 +-
src/test/recovery/t/026_overwrite_contrecord.pl | 116 +-----------------------
src/test/recovery/t/idiosyncratic_copy          |  20 ----
3 files changed, 3 insertions(+), 135 deletions(-)