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2abcd86c - Revert "[ty] Better control flow for boolean expressions that are inside if (#18010)" (#18150)

Revert "[ty] Better control flow for boolean expressions that are inside if (#18010)" (#18150) This reverts commit 9910ec700c45efcb9734926fb1412bec22b34100. ## Summary This change introduced a serious performance regression. Revert it while we investigate. Fixes https://github.com/astral-sh/ty/issues/431 ## Test Plan Timing on the snippet in https://github.com/astral-sh/ty/issues/431 again shows times similar to before the regression.