chore: remove unused NativeDatePickerAndroid

[ecreeth]

Summary

In 7a77052 theDatePickerAndroid was removed from the core but this file was forgotten.

Changelog

[JavaScript][Removed] - remove unused NativeDatePickerAndroid

Test Plan

CI is green

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
ios	-	universal	n/a	--

Base commit: 27dd2ec

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	8,958,574	-758
android	hermes	armeabi-v7a	8,489,990	-721
android	hermes	x86	9,379,550	-582
android	hermes	x86_64	9,343,869	-749
android	jsc	arm64-v8a	10,640,621	-704
android	jsc	armeabi-v7a	9,559,566	-671
android	jsc	x86	10,655,886	-528
android	jsc	x86_64	11,263,898	-685

Base commit: 27dd2ec

[facebook-github-bot]

@cortinico has imported this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

[lunaleaps]

Hey @ecreeth

Thanks for this PR but right now we are actively removing lean-core modules (schedule to be posted soon). This file backs native modules that we'll need to remove first internally and then we can remove the JS spec so this file was left here intentionally.

For now, I will close this PR. Please let me know if you have any concerns, thanks again for your contribution!