Remove plugins_index from docs?

[nicoddemus]

I think currently the plugins index is redundant, since we have plugincompat which is updated daily with the list of plugins... plus it generates a ton of warnings about external images being used, which is a little annoying.

What do you guys think?

@RonnyPfannschmidt @hpk42 @The-Compiler @flub @bubenkoff

[RonnyPfannschmidt]

i like the idea, it also removes a error prone step

[nicoddemus]

If nobody opposes it, I will remove it tomorrow.

[hpk42]

fine to remove it. and i think the columsn should be "name,summary,homepage,compat-py27,compat-py34" because people come from it through the "3rd party plugins" links from pytest.org and may want to first now what a plugin does before checking on compat etc.