Add missing remove method to addEventListener Jest mocks

[levibuzolic]

Summary:

While writing some Jest tests, I noticed some instances of the following error:

Cannot read properties of undefined (reading 'remove')

Looks like there were two cases where the {remove: () => {}} return result was missing in the provided Jest mocks:

• AccessibilityInfo.addEventListener
• Linking.addEventListener

Changelog:

[GENERAL] [FIXED] - Added missing remove methods for Linking.addEventListener and AccessibilityInfo.addEventListener Jest mocks

Test Plan

N/A