Remove Width Limit

[tjdrhs90]

Problem

Labels with long text were being truncated with "..." due to
hardcoded width limits applied to all platforms:

• tvOS: 16384.0
• iOS: 5461.0 (based on iPhone 6S Plus)

These limits cause incorrect truncation when the label's content
exceeds the hardcoded maximum width.

Solution

Removed the platform-specific width sanitization block entirely,
allowing expectedLabelSize to reflect the true content width
without artificial limits.

Changes

• Removed #if os(tvOS) / #else / #endif width cap block
  in MarqueeLabel.swift