[cleanup] cleanup AbstractRector from DONT_TRAVERSE_* enums as no longer supported, all rules work without it now #31653

Job	Run time
Preload php-parser Order	21s
Commented Code	31s
Composer Validate	23s
Help and Version	22s
Run with Space in Directory	20s
PHPStan	1m 28s
Finalize classes	45s
PHP Linter	26s
Check before/after test fixture on no-changes	23s
Check fixture classes are different to nodes	22s
Compatible PHPStan versions	16s
Detect composer dependency issues	17s
Check no "*.php" files in rules Fixture directory	23s
Active Classes	31s
	6m 48s

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