Remove code relying on non-MapBuffer TextLayoutManager

[NickGerleman]

Summary: These are all either dead, or duplicate code (e.g. for spannable cache). Let's delete it, so we can get rid of the redundant TextLayoutManager that is no longer getting new updates.

Changelog: [Internal]

Differential Revision: D56800381

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	19,445,725	-32
android	hermes	armeabi-v7a	n/a	--
android	hermes	x86	n/a	--
android	hermes	x86_64	n/a	--
android	jsc	arm64-v8a	22,818,274	-17
android	jsc	armeabi-v7a	n/a	--
android	jsc	x86	n/a	--
android	jsc	x86_64	n/a	--

Base commit: c96c8933745b72148856e62f13553d7a2f5d4f6b Branch: main

[javache]

Merged as https://github.com/facebook/react-native/commit/1499e67b39bc2dc0c27bdc1686062042be4683d2