tests: remove unused import of mercurial.repoview from test-propertycache
I don't see any reason to import it, but if there is a reason, please disregard
this and the next patch.
# See http://EditorConfig.org for the specification
root = true
[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true