Downcasting of the offset for TextTrack removed

[skywojciechowskim]

Summary: Downcasting of the offset for TextTrack removed
Type: Fix
Test Plan: UT/ CT, Fullstack
Jira: VPLAY-10419

[github-actions]

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Type: Feature/Fix/Cleanup
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[github-actions]

Coverage statistics of your commit:
Lines coverage stays unchanged and is: 85.6%
Functions coverage stays unchanged and is: 92.8%

[github-actions]

Coverage statistics of your commit:
Congratulations, your commit improved lines coverage from: 85.6% to 85.7%
Functions coverage stays unchanged and is: 92.8%

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Job for AI/job/RIALTO_BUILDS/job/AI-Trigger-PR-Builds started: https://pv-jen015.uk2.scp.bskyb.com/job/AI/job/RIALTO_BUILDS/job/AI-Trigger-PR-Builds/262/

[github-actions]

Coverage statistics of your commit:
Lines coverage stays unchanged and is: 85.6%
Functions coverage stays unchanged and is: 92.8%