Fix Desktop build break - warning for unreachable code
Fix Desktop build break - warning for unreachable code

[tfs-changeset: 1678568]

wtgodbe/coreclr,ruben-ayrapetyan/coreclr,JosephTremoulet/coreclr,krk/coreclr,wateret/coreclr,ruben-ayrapetyan/coreclr,ruben-ayrapetyan/coreclr,yizhang82/coreclr,mmitche/coreclr,cshung/coreclr,poizan42/coreclr,cshung/coreclr,wtgodbe/coreclr,wateret/coreclr,poizan42/coreclr,yizhang82/coreclr,JosephTremoulet/coreclr,yizhang82/coreclr,poizan42/coreclr,cshung/coreclr,wateret/coreclr,JosephTremoulet/coreclr,yizhang82/coreclr,wtgodbe/coreclr,JosephTremoulet/coreclr,yizhang82/coreclr,mmitche/coreclr,wtgodbe/coreclr,mmitche/coreclr,poizan42/coreclr,krk/coreclr,mmitche/coreclr,wateret/coreclr,ruben-ayrapetyan/coreclr,cshung/coreclr,ruben-ayrapetyan/coreclr,krk/coreclr,wateret/coreclr,mmitche/coreclr,krk/coreclr,mmitche/coreclr,poizan42/coreclr,wateret/coreclr,wtgodbe/coreclr,JosephTremoulet/coreclr,cshung/coreclr,poizan42/coreclr,krk/coreclr,JosephTremoulet/coreclr,ruben-ayrapetyan/coreclr,cshung/coreclr,wtgodbe/coreclr,yizhang82/coreclr,krk/coreclr