Remove TextInput setting insertionPointColor

[christophpurrer]

Please select one of the following

• I am removing an existing difference between facebook/react-native and microsoft/react-native-macos 👍
• I am cherry-picking a change from Facebook's react-native into microsoft/react-native-macos 👍
• I am making a fix / change for the macOS implementation of react-native
• I am making a change required for Microsoft usage of react-native

Summary

We should not be setting the insertionPointColor by default.
Let the OS do its thing.
Later we can consider exposing a prop for this but the default should be to not set it.

Changelog

[macOS] [Changed] - Remove TextInput setting insertionPointColor

Test Plan

Setting a purple selectionColor on the texInput fields

selectionColor='purple'

Before

After

[christophpurrer]

@Saadnajmi > Is yarn test-ios broken in the main branch?

I just ran it locally and I get the same error as in the failed ci/circleci: test_ios_unit_hermes job

...
Test Suite 'RNTesterUnitTests.xctest' passed at 2022-08-04 10:13:37.177.
	 Executed 172 tests, with 0 failures (0 unexpected) in 0.454 (0.543) seconds
Test Suite 'Selected tests' passed at 2022-08-04 10:13:37.178.
	 Executed 172 tests, with 0 failures (0 unexpected) in 0.454 (0.545) seconds
2022-08-04 10:13:37.457 xcodebuild[39674:12232662] [MT] IDETestOperationsObserverDebug: 115.546 elapsed -- Testing started completed.
2022-08-04 10:13:37.457 xcodebuild[39674:12232662] [MT] IDETestOperationsObserverDebug: 0.000 sec, +0.000 sec -- start
2022-08-04 10:13:37.457 xcodebuild[39674:12232662] [MT] IDETestOperationsObserverDebug: 115.546 sec, +115.546 sec -- end

Test session results, code coverage, and logs:
	/Users/chpurrer/Library/Developer/Xcode/DerivedData/RNTesterPods-fluhyrocwhnsapbnumzfxhrxwalw/Logs/Test/Run-RNTester-2022.08.04_10-10-41--0700.xcresult

** TEST SUCCEEDED **

error Command failed with signal "SIGTERM".
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
Can't start packager automatic

I have the same problem in #1322