remove "matplotlib v<1" compatibility code #8545
Description
> git grep "# compatibility matplotlib < 1.0"
examples/manifold/plot_compare_methods.py: # compatibility matplotlib < 1.0
examples/manifold/plot_manifold_sphere.py: # compatibility matplotlib < 1.0
examples/manifold/plot_swissroll.py: # compatibility matplotlib < 1.0
I think we can remove these.
Also, the comment oddly placed. I think the part after the try is the new one, the except clause is the one for compatibility.