RF: remove duplicate sh_estimate.py script
RF: remove duplicate sh_estimate.py script

It is an older version of the dipy_sh_estimate script

mdesco/dipy,demianw/dipy,matthieudumont/dipy,demianw/dipy,rfdougherty/dipy,samuelstjean/dipy,rfdougherty/dipy,Messaoud-Boudjada/dipy,oesteban/dipy,maurozucchelli/dipy,oesteban/dipy,StongeEtienne/dipy,samuelstjean/dipy,Messaoud-Boudjada/dipy,mdesco/dipy,matthieudumont/dipy,villalonreina/dipy,beni55/dipy,StongeEtienne/dipy,samuelstjean/dipy,jyeatman/dipy,nilgoyyou/dipy,JohnGriffiths/dipy,maurozucchelli/dipy,beni55/dipy,jyeatman/dipy,FrancoisRheaultUS/dipy,sinkpoint/dipy,FrancoisRheaultUS/dipy,maurozucchelli/dipy,sinkpoint/dipy,JohnGriffiths/dipy,villalonreina/dipy,nilgoyyou/dipy