Remove broken `pointReductionTest`
Remove broken `pointReductionTest`

Eventually, we should make a similar test, but right now this
function is completely broken and small enough to discard.
Rebuilding from scratch should be the way to go.

matlab2tikz/matlab2tikz,egeerardyn/matlab2tikz,RPeschke/matlab2tikz,nidrosianDeath/matlab2tikz,miscco/matlab2tikz,PeterPablo/matlab2tikz,matlab2tikz/matlab2tikz,LJeub/matlab2tikz,egeerardyn/matlab2tikz