dev-embedded/esptool is single-impl again, so let's reverse the dep
changes made in 0f0e764b52.
A potentially saner solution could be to convert this package to
single-impl.
Signed-off-by: Lucio Sauer <watermanpaint@posteo.net>
Now that dev-embedded/esptool is Python multi impl, we can go ahead and
add [${PYTHON_USEDEP}] to its dependency declaration.
Signed-off-by: Florian Schmaus <flow@gentoo.org>