Remove float8-small-is-zero regression test variant.
Since this was also the variant used as an example in the docs, update
the docs to use float4-misrounded-input as an example instead, since
that is now the only remaining variant file.
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/6ee89952d4e944b5c9c26181d418395b2f5d5fd8
Modified Files
--------------
doc/src/sgml/regress.sgml | 19 +-
src/test/regress/expected/float8-small-is-zero.out | 1070 --------------------
2 files changed, 9 insertions(+), 1080 deletions(-)
