chore(kernel): remove unnecessary file
chore(kernel): remove unnecessary file

Signed-off-by: Leonardo de Moura <7610bae85f2b530654cc716772f1fe653373e892@microsoft.com>

fpvandoorn/lean,dselsam/lean,UlrikBuchholtz/lean,fpvandoorn/lean,digama0/lean,fpvandoorn/lean,leodemoura/lean,fgdorais/lean,sp3ctum/lean,leanprover-community/lean,eigengrau/lean,c-cube/lean,johoelzl/lean,rlewis1988/lean,fpvandoorn/lean,leanprover-community/lean,dselsam/lean,fgdorais/lean,digama0/lean,c-cube/lean,UlrikBuchholtz/lean,soonhokong/lean-windows,levnach/lean,rlewis1988/lean,leanprover/lean,fgdorais/lean,sp3ctum/lean,eigengrau/lean,Kha/lean,sp3ctum/lean,leanprover-community/lean,htzh/lean,c-cube/lean,soonhokong/lean,leanprover/lean,digama0/lean,c-cube/lean,UlrikBuchholtz/lean,avigad/lean,leanprover/lean,fpvandoorn/lean,fgdorais/lean,eigengrau/lean,javra/lean,javra/lean,soonhokong/lean-osx,fpvandoorn/lean2,avigad/lean,javra/lean,johoelzl/lean,soonhokong/travis_test,Kha/lean,leodemoura/lean,johoelzl/lean,htzh/lean,soonhokong/lean-windows,leodemoura/lean,htzh/lean,avigad/lean,UlrikBuchholtz/lean,fpvandoorn/lean2,dselsam/lean,c-cube/lean,digama0/lean,UlrikBuchholtz/lean,johoelzl/lean,soonhokong/lean,htzh/lean,leanprover-community/lean,levnach/lean,levnach/lean,avigad/lean,rlewis1988/lean,javra/lean,digama0/lean,soonhokong/lean-osx,digama0/lean,soonhokong/lean-osx,Kha/lean,htzh/lean,johoelzl/lean,fgdorais/lean,dselsam/lean,johoelzl/lean,eigengrau/lean,fpvandoorn/lean2,levnach/lean,soonhokong/travis_test,leodemoura/lean,leanprover/lean,Kha/lean,dselsam/lean,fpvandoorn/lean,soonhokong/travis_test,Kha/lean,sp3ctum/lean,javra/lean,leanprover-community/lean,soonhokong/lean-windows,fgdorais/lean,Kha/lean,soonhokong/lean-osx,avigad/lean,soonhokong/lean,leanprover/lean,leanprover-community/lean,rlewis1988/lean,soonhokong/lean,fpvandoorn/lean2,rlewis1988/lean,rlewis1988/lean,leanprover/lean,eigengrau/lean,levnach/lean,soonhokong/lean-windows,soonhokong/lean-windows,soonhokong/travis_test,avigad/lean,leodemoura/lean,soonhokong/lean,fpvandoorn/lean2,leodemoura/lean,dselsam/lean,sp3ctum/lean,soonhokong/lean-osx