cleanup: remove unused file and import interface pipe.rs

[ChinmayShringi]

Fixes #45

This PR removes commented code from the specified files to enhance code readability and maintainability. The goal is to ensure the codebase remains clean, with no unused or redundant code, ultimately improving the developer experience.

Type of change

• Chore (code quality improvement that doesn’t affect functionality)

How Has This Been Tested?

Since this PR only involves the removal of commented code, no functional tests were required. Basic linting and the following test cases were run to ensure no regressions were introduced.

• cargo build

Checklist:

• My code follows the style guidelines of this project.
• I have removed all commented-out code in the relevant files.
• My changes generate no new warnings.
• All existing tests pass to confirm no regressions were introduced.
• Any dependent changes have been added to corresponding pull requests (if applicable).

[Yaxuan-w]

LGTM