fix(firestore): use recursive delete for collection#2313

alarconesparza wants to merge 3 commits intogoogleapis:maingoogleapis/java-firestore:mainfrom

alarconesparza:alarconesparza-use-recursive-delete-collection-470276792alarconesparza/java-firestore:alarconesparza-use-recursive-delete-collection-470276792Copy head branch name to clipboard