Cleanup pyfluent.EXAMPLES_PATH before running unittest job

[mkundu1]

[mkundu1]

Should be done as a part of pytest setup step - or even before running each test

[seanpearsonuk]

@prmukherj re these merges, do they close this issue? cc: @mkundu1

[seanpearsonuk]

@mkundu1 Can we close this?

[mkundu1]

We are already doing this during github run which is sufficient.