Consolidate license files

[ZiyueXu77]

Fixes # .

Description

Consolidate license files to the same folder, and remove unnecessary ones

Types of changes

• Non-breaking change (fix or new feature that would not break existing functionality).
• Breaking change (fix or new feature that would cause existing functionality to change).
• New tests added to cover the changes.
• Quick tests passed locally by running ./runtest.sh.
• In-line docstrings updated.
• Documentation updated.

[Copilot]

Pull Request Overview

This PR consolidates license files across the repository by removing duplicate Apache License 2.0 files from various subdirectories. The purpose is to clean up the project structure by eliminating redundant license files that were scattered throughout different research and integration directories.

• Removes duplicate Apache License 2.0 files from multiple research projects and integration modules
• Streamlines license management by centralizing license information
• Reduces repository clutter and maintenance overhead

Reviewed Changes

Copilot reviewed 10 out of 14 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
research/quantifying-data-leakage/LICENSE	Removes Apache License 2.0 file from quantifying-data-leakage research directory
research/one-shot-vfl/LICENSE.txt	Removes Apache License 2.0 file from one-shot-vfl research directory
research/fed-sm/LICENSE	Removes Apache License 2.0 file from fed-sm research directory
research/fed-ce/LICENSE	Removes Apache License 2.0 file from fed-ce research directory
research/fed-bpt/LICENSE.txt	Removes Apache License 2.0 file from fed-bpt research directory
research/fed-bn/LICENSE	Removes Apache License 2.0 file from fed-bn research directory
research/condist-fl/LICENSE	Removes Apache License 2.0 file from condist-fl research directory
research/auto-fed-rl/LICENSE	Removes Apache License 2.0 file from auto-fed-rl research directory
integration/monai/monai_nvflare/license.txt	Removes Apache License 2.0 file from monai_nvflare integration directory
integration/monai/3rdParty/monai.LICENSE.txt	Removes Apache License 2.0 file from monai 3rdParty directory

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[ZiyueXu77]

/build