chore: remove unnecessary override of prepareForRecycle method in header subview (#3447)

Remove unnecessary override of `prepareForRecycle` method
This is not needed for two reasons:

1. we return `NO` from `shouldBeRecycled`,
2. current implementation only calls to super implementation.

Closes
software-mansion/react-native-screens-labs#675

Author: kkafar

ios/RNSScreenStackHeaderSubview.mm

@@ -138,11 +138,6 @@ - (instancetype)initWithFrame:(CGRect)frame
 
 #pragma mark - RCTComponentViewProtocol
 
-- (void)prepareForRecycle
-{
-  [super prepareForRecycle];
-}
-
 - (void)updateProps:(react::Props::Shared const &)props oldProps:(react::Props::Shared const &)oldProps
 {
   const auto &newHeaderSubviewProps = *std::static_pointer_cast<const react::RNSScreenStackHeaderSubviewProps>(props);