[DeadCode] Add RemoveDeadIfBlocksRector #31900

Job	Run time
Finalize classes	22s
Check before/after test fixture on no-changes	23s
Commented Code	21s
Help and Version	17s
Compatible PHPStan versions	23s
Composer Validate	22s
Run with Space in Directory	23s
PHPStan	1m 27s
Preload php-parser Order	22s
Active Classes	20s
Check no "*.php" files in rules Fixture directory	21s
Detect composer dependency issues	18s
Check fixture classes are different to nodes	16s
PHP Linter	27s
	6m 2s

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