Revert "[image-picker] install expo-image-picker lib"

Summary: This reverts commit 6a227d2721ede7d714e0604094e92fa306e1c22e.

Test Plan: Reversion: build should pass.

Reviewers: varun, ashoat

Reviewed By: varun, ashoat

Subscribers: tomek, atul, ashoat

Differential Revision: https://phab.comm.dev/D6185