tests: fix a copy/paste name duplication in storage.py
Flagged by PyCharm as a redeclared name without usage, because the name matches
the function immediately preceding it. But since this differs by doing regular
reads instead of raw reads, I assume we still want it. But I don't see either
function being called anywhere.
Differential Revision: https://phab.mercurial-scm.org/D7769
{
"conduit_uri": "https://phab.mercurial-scm.org/api",
"repository.callsign": "HG",
"arc.land.onto.default": "@",
"base": "hg:.^"
}