beam_utils: Remove unreachable clauses in live_opt/4
beam_utils: Remove unreachable clauses in live_opt/4

beam_utils:live_opt() is only invoked on code that has been
blockified by beam_block. Therefore the allocate/3 and
allocate_heap/4 instructions only occur in their transformed
form inside a block.

While we are it, correct a comment. 'asm' has been replaced
by 'from_asm'.

paulcager/otp,lantti/otp,lhslll/otp,isvilen/otp,lianghaivv/otp,uabboli/otp,paulcager/otp,getong/otp,uabboli/otp,bugs-erlang-org/otp,riverrun/otp,theom/otp,electricimp/otp,riverrun/otp,msantos/otp,VincentHHL/otp,bugs-erlang-org/otp,haguenau/otp,bsmr-erlang/otp,aboroska/otp,NOMORECOFFEE/otp,lucafavatella/otp,jinshana/otp,RoadRunnr/otp,sitexa/otp,paulcager/otp,lantti/otp,schlagert/otp,platinumthinker/otp,isvilen/otp,vinoski/otp,dgud/otp,NOMORECOFFEE/otp,basho/otp,Teino1978-Corp/otp,release-project/otp,jamesruan/otp,Teino1978-Corp/erlang-otp,vic/otp,dumbbell/otp,bjorng/otp,benoitc/otp-1,marquisthunder/otp,sitexa/otp,klarna/otp,gjaldon/otp,paulcager/otp,ferd/otp,ferd/otp,jamesruan/otp,riverrun/otp,potatosalad/otp,sdebnath/otp,potatosalad/otp,RaimoNiskanen/otp,neeraj9/otp,lucafavatella/otp,lemenkov/otp,mujiatong/otp,VincentHHL/otp,emile/otp,tuncer/otp,massemanet/otp,bjorng/otp,RaimoNiskanen/otp,electricimp/otp,saleyn/otp,massemanet/otp,emile/otp,GinjaNinja32/otp,lianghaivv/otp,ahmedshafeeq/otp,kvakvs/otp,lucafavatella/otp,RJ/otp,isvilen/otp,paulcager/otp,fenollp/otp,jamesruan/otp,derek121/otp,weisslj/otp,basho/otp,johanclaesson/otp,kvakvs/otp,emile/otp,vinoski/otp,aboroska/otp,isvilen/otp,awetzel/otp,marquisthunder/otp,falkevik/otp,massemanet/otp,legoscia/otp,uabboli/otp,psyeugenic/otp,krishnakumar4a4/otp,msantos/otp,kvakvs/otp,entropiae/otp,yangchengjian/otp,johanclaesson/otp,lianghaivv/otp,derek121/otp,yangchengjian/otp,neeraj9/otp,psyeugenic/otp,palas/otp,rlipscombe/otp,mikpe/otp,weisslj/otp,jinshana/otp,mujiatong/otp,msantos/otp,lantti/otp,theom/otp,lantti/otp,sitexa/otp,saleyn/otp,isvilen/otp,c-rack/otp,RoadRunnr/otp,ahmedshafeeq/otp,weisslj/otp,gjaldon/otp,platinumthinker/otp,bjorng/otp,yangchengjian/otp,g-andrade/otp,benoitc/otp-1,tuncer/otp,johanclaesson/otp,g-andrade/otp,lightcyphers/otp,weisslj/otp,potatosalad/otp,erlang/otp,RGafiyatullin/otp,emacsmirror/erlang,RJ/otp,paladim/otp,rlipscombe/otp,awetzel/otp,dumbbell/otp,derek121/otp,potatosalad/otp,benoitc/otp-1,lightcyphers/otp,getong/otp,goertzenator/otp,NOMORECOFFEE/otp,lemenkov/otp,mujiatong/otp,beni55/otp,saleyn/otp,bernardd/otp,potatosalad/otp,mujiatong/otp,jj1bdx/otp,theom/otp,electricimp/otp,klarna/otp,lhslll/otp,GinjaNinja32/otp,emacsmirror/erlang,legoscia/otp,fenollp/otp,tuncer/otp,cnbin/otp,schlagert/otp,lucafavatella/otp,bjorng/otp,matwey/otp,sammoth-wazoku/otp,bernardd/otp,RGafiyatullin/otp,bernardd/otp,matwey/otp,VincentHHL/otp,awetzel/otp,lianghaivv/otp,riverrun/otp,goertzenator/otp,paladim/otp,lhslll/otp,emile/otp,ferd/otp,RJ/otp,sitexa/otp,platinumthinker/otp,psyeugenic/otp,dgud/otp,derek121/otp,lrascao/otp,RaimoNiskanen/otp,massemanet/otp,bsmr-erlang/otp,hairyhum/otp,cobusc/otp,Teino1978-Corp/erlang-otp,NOMORECOFFEE/otp,bjorng/otp,haguenau/otp,Teino1978-Corp/erlang-otp,tuncer/otp,mikpe/otp,derek121/otp,erlang/otp,release-project/otp,getong/otp,vic/otp,jj1bdx/otp,benoitc/otp-1,kvakvs/otp,riverrun/otp,sitexa/otp,ferd/otp,lianghaivv/otp,g-andrade/otp,sammoth-wazoku/otp,matwey/otp,matwey/otp,matwey/otp,emacsmirror/erlang,lrascao/otp,fenollp/otp,msantos/otp,isvilen/otp,enikki/otp,cobusc/otp,ader1990/otp,rlipscombe/otp,aboroska/otp,vinoski/otp,RichMorin/otp,c-rack/otp,RaimoNiskanen/otp,cnbin/otp,benoitc/otp-1,rlipscombe/otp,c-rack/otp,vinoski/otp,mujiatong/otp,getong/otp,haguenau/otp,isvilen/otp,krishnakumar4a4/otp,saleyn/otp,jinshana/otp,RichMorin/otp,psyeugenic/otp,RGafiyatullin/otp,jamesruan/otp,basho/otp,rlipscombe/otp,palas/otp,goertzenator/otp,saleyn/otp,emacsmirror/erlang,klarna/otp,krishnakumar4a4/otp,NOMORECOFFEE/otp,theom/otp,jamesruan/otp,sdebnath/otp,basho/otp,lrascao/otp,lrascao/otp,ader1990/otp,VincentHHL/otp,jamesruan/otp,paulcager/otp,derek121/otp,ferd/otp,enikki/otp,legoscia/otp,bugs-erlang-org/otp,ahmedshafeeq/otp,yangchengjian/otp,sammoth-wazoku/otp,release-project/otp,dumbbell/otp,bugs-erlang-org/otp,haguenau/otp,sdebnath/otp,electricimp/otp,sammoth-wazoku/otp,dumbbell/otp,GinjaNinja32/otp,klarna/otp,release-project/otp,sammoth-wazoku/otp,lianghaivv/otp,marquisthunder/otp,haguenau/otp,massemanet/otp,jj1bdx/otp,jj1bdx/otp,schlagert/otp,haguenau/otp,falkevik/otp,vic/otp,enikki/otp,c-rack/otp,awetzel/otp,uabboli/otp,vic/otp,bernardd/otp,sdebnath/otp,saleyn/otp,cnbin/otp,vinoski/otp,RGafiyatullin/otp,palas/otp,gjaldon/otp,vladdu/otp,mujiatong/otp,dumbbell/otp,potatosalad/otp,emacsmirror/erlang,aboroska/otp,hairyhum/otp,jamesruan/otp,schlagert/otp,derek121/otp,lemenkov/otp,NOMORECOFFEE/otp,g-andrade/otp,NOMORECOFFEE/otp,bugs-erlang-org/otp,matwey/otp,jemsbhai/otp,lucafavatella/otp,erlang/otp,RaimoNiskanen/otp,getong/otp,mikpe/otp,gjaldon/otp,lantti/otp,GinjaNinja32/otp,vladdu/otp,sammoth-wazoku/otp,jj1bdx/otp,mujiatong/otp,neeraj9/otp,bsmr-erlang/otp,yangchengjian/otp,jj1bdx/otp,basho/otp,sitexa/otp,getong/otp,mikpe/otp,jinshana/otp,vic/otp,saleyn/otp,lightcyphers/otp,cobusc/otp,krishnakumar4a4/otp,RaimoNiskanen/otp,lightcyphers/otp,aboroska/otp,lantti/otp,falkevik/otp,lrascao/otp,hairyhum/otp,lantti/otp,ader1990/otp,electricim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gud/otp,lucafavatella/otp,g-andrade/otp,Teino1978-Corp/erlang-otp,basho/otp,paulcager/otp,emile/otp,Teino1978-Corp/erlang-otp,release-project/otp,marquisthunder/otp,fenollp/otp,fenollp/otp,falkevik/otp,jinshana/otp,matwey/otp,palas/otp,legoscia/otp,benoitc/otp-1,mikpe/otp,falkevik/otp,paladim/otp,tuncer/otp,msantos/otp,vinoski/otp