There's only a couple of cases like this, but there are some locale
paths in the CLDR that contain variants. For example, there isn't a
en-US path, but there is a en-US-POSIX path. This interferes with the
operation to search for locales by name. The algorithm is such that
searching for en-US will not result in en-US-POSIX being found. To
resolve this, we should remove variants from the locale name.