Clean up RCTParagraphComponentView & RCTParagraphTextView (#46125)

Summary:
Clean up some dead code after some refactoring of RCTParagraphComponentView.  cc cipolleschi

## Changelog:

[IOS] [FIXED] - Clean up RCTParagraphComponentView & RCTParagraphTextView

Pull Request resolved: #46125

Test Plan: CI green.

Reviewed By: christophpurrer

Differential Revision: D61603193

Pulled By: cipolleschi

fbshipit-source-id: a357e8c5355707b2296462de513010acda4ee6ea

packages/react-native/React/Fabric/Mounting/ComponentViews/Text/RCTParagraphComponentView.mm

@@ -54,7 +54,6 @@ - (instancetype)initWithFrame:(CGRect)frame
     _props = ParagraphShadowNode::defaultSharedProps();
 
     self.opaque = NO;
-    self.contentMode = UIViewContentModeRedraw;
     _textView = [RCTParagraphTextView new];
     _textView.backgroundColor = UIColor.clearColor;
     self.contentView = _textView;
@@ -324,8 +323,6 @@ - (void)copy:(id)sender
 }
 
 @implementation RCTParagraphTextView {
-  RCTParagraphComponentAccessibilityProvider *_accessibilityProvider;
-  UILongPressGestureRecognizer *_longPressGestureRecognizer;
   CAShapeLayer *_highlightLayer;
 }