[Improvement] [API] Remove useless constructors

[nobolity]

Search before asking

• I had searched in the issues and found no similar issues.

What happened

there is a useless constructors in it
public DataSource() {
}

What you expected to happen

this is useless

How to reproduce

i will delete it

Anything else

No response

Version

dev

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[github-actions]

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[github-actions]

This issue has been automatically marked as stale because it has not had recent activity for 30 days. It will be closed in next 7 days if no further activity occurs.

[github-actions]

This issue has been closed because it has not received response for too long time. You could reopen it if you encountered similar problems in the future.