Remove redundant env argument to Reduction.ccnv
Remove redundant env argument to Reduction.ccnv

The infos already contain the env. Note that it was only actually used
in the 2 lookup_mind lines.

letouzey/coq-wip,ejgallego/coq,ppedrot/coq,Zimmi48/coq,gares/coq,maximedenes/coq,JasonGross/coq,ppedrot/coq,SkySkimmer/coq,letouzey/coq-wip,ejgallego/coq,gares/coq,silene/coq,SkySkimmer/coq,letouzey/coq-wip,ejgallego/coq,SkySkimmer/coq,JasonGross/coq,ppedrot/coq,maximedenes/coq,maximedenes/coq,Zimmi48/coq,Matafou/coq,SkySkimmer/coq,coq/coq,gares/coq,ppedrot/coq,Zimmi48/coq,JasonGross/coq,coq/coq,coq/coq,silene/coq,gares/coq,letouzey/coq-wip,Matafou/coq,JasonGross/coq,maximedenes/coq,maximedenes/coq,silene/coq,letouzey/coq-wip,coq/coq,ejgallego/coq,ppedrot/coq,Matafou/coq,Zimmi48/coq,gares/coq