Remove enableMainQueueCoordinatorOnIOS, make coordinator always-on (#56935) #39665

Job	Run time
set_release_type	2s
lint	2m 1s
check_code_changes	3s
prebuild_apple_dependencies	0s
build_android	0s
test_ios_rntester_dynamic_frameworks	0s
test_e2e_android_rntester	0s
build_npm_package	58s
prebuild_react_native_core	0s
test_ios_rntester_ruby_3_2_0	0s
build_debugger_shell	0s
test_ios_rntester	0s
test_ios_helloworld_with_ruby_3_2_0	0s
test_e2e_ios_rntester	0s
test_ios_helloworld	0s
test_e2e_android_rntester_retry_1	0s
test_e2e_ios_rntester_retry_1	0s
test_e2e_android_rntester_retry_2	0s
test_e2e_ios_rntester_retry_2	0s
test_e2e_ios_templateapp_retry_1	0s
test_e2e_ios_templateapp	0s
test_e2e_android_templateapp_retry_2	0s
test_android_helloworld	0s
test_e2e_android_templateapp	0s
test_e2e_android_templateapp_retry_1	0s
test_e2e_ios_templateapp_retry_2	0s
test_js	0s
build_fantom_runner	0s
build_js_types	0s
run_fantom_tests	0s
run_fantom_tests_retry_1	0s
run_fantom_tests_retry_2	0s
	3m 4s

Provide feedback