How to disable PHP and Python Libraries being added to projects?

I am testing out IntelliJ IDEA Ultimate for PHP and Python development instead of going with the individual PyCharm and phpStorm applications.

What I am noticing is that in my projects whether it be PHP only projects or Python only projects that both PHP and Python libraries are added to the external libraries folder for the project.  I do not want multiple languages like this in each and every project, the only solution I have found on my own is to disable one or the other plugin before working in a project.  This is annoying and should not be necessary.   

If I am working in Python projects why do I need PHP libraries and vice versa, shouldn't IntelliJ just know what language I am using based on the project I setup? Why include other unrelated resources?   How do I stop this without disabling plugins for those other languages?