Remove print about API

[Tmarinus]

I like this simple easy way to pick a color, great widget thank you.

But in the init file there is a print statement that if imported is always printed. Could be nice if this was removed.

print("Using QtPy API: %s" % API_NAME)

[Tmarinus]

#12 Created pull request

[nlfmt]

Good catch, that seems to be a leftover debug statement.. If you can implement the changes i proposed in the PR, we can merge it asap!