[native] [11/40] RN 0.70: Revert "[RN0.66] 41/n: Patch Easing types"

Summary:
This reverts commit bf432e64a8960c2e294891cc50b2a4a8bc21e3ec.

See Linear comment for more details... we don't need this hack anymore after React Native fixed the types upstream.

Depends on D5904

Test Plan: Ran flow and also tested along with whole stack: test plan

Reviewers: tomek, bartek

Subscribers: atul

Differential Revision: https://phab.comm.dev/D5905