Stop polyfilling Promise (facebook/react-native#29754)#5

chrisbobbe wants to merge 2 commits into

zulip:0.61.5-zulipzulip/react-native:0.61.5-zulipfrom

chrisbobbe:pr-0.61.5-zulipchrisbobbe/react-native:pr-0.61.5-zulipCopy head branch name to clipboard