Remove setNextLayoutAnimationGroup call (#4955)

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## Summary

See
Expensify/App#20552 (comment)
for details.

## Test plan

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Author: tomekzaw

apple/LayoutReanimation/REASwizzledUIManager.mm

@@ -317,7 +317,7 @@ - (RCTViewManagerUIBlock)reanimated_uiBlockWithLayoutUpdateForRootView:(RCTRootS
     // Clean up
     // below line serves as this one uiManager->_layoutAnimationGroup = nil;, because we don't have access to the
     // private field
-    [uiManager setNextLayoutAnimationGroup:nil];
+    [uiManager setValue:nil forKey:@"_layoutAnimationGroup"];
 
     [originalSelf.animationsManager viewsDidLayout];
     // Reanimated changes /end