Small code simplification in side-effect handling.
Small code simplification in side-effect handling.

We were performing a lot of useless list manipulations.

SkySkimmer/coq,ejgallego/coq,Zimmi48/coq,Zimmi48/coq,coq/coq,ejgallego/coq,Zimmi48/coq,ejgallego/coq,SkySkimmer/coq,SkySkimmer/coq,coq/coq,Zimmi48/coq,SkySkimmer/coq,ejgallego/coq,coq/coq,coq/coq