Updated strings and XML comments.

[sanganinamrata]

Description (*)

Fixed Issues (if relevant)

This pull request is to remove unnecessary duplicate words from strings and XML comments.

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

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[engcom-Bravo]

✔️ QA Passed

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