🔥 (FileReader) remove unused _subscriptions attribute

[AntoineDoubovetzky]

Summary

I was reading source code, and I noticed the _subscriptions attribute (and the _clearSubscriptions method) of the FileReader is not used.

Changelog

[Internal] [Changed] - Remove unused _subscriptions attribute in FileReader

Test Plan

I checked that flow and jest are still green as I can't think about another way.

[facebook-github-bot]

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

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	7,788,127	-33
android	hermes	armeabi-v7a	7,191,702	-40
android	hermes	x86	8,099,477	-47
android	hermes	x86_64	8,076,985	-36
android	jsc	arm64-v8a	9,656,265	+0
android	jsc	armeabi-v7a	8,428,769	+1
android	jsc	x86	9,608,438	+3
android	jsc	x86_64	10,202,981	-12

Base commit: f1775ba
Branch: main

[analysis-bot]

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

Base commit: f1775ba
Branch: main

[react-native-bot]

This pull request was successfully merged by @AntoineDoubovetzky in dbcada0.

^{When will my fix make it into a release? | Upcoming Releases}