[FIX] Delete leftover .template-env and docker-compose.yml

[alyssadai]

• Closes Remove leftover .template-env file #297

Changes proposed in this pull request:

• .template-env and docker-compose.yml in this repo superseded by neurobagel/recipes repo

Checklist

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• PR has an interpretable title with a prefix ([ENH], [FIX], [REF], [TST], [CI], [MNT], [INF], [MODEL], [DOC]) (see our Contributing Guidelines for more info)
• PR has a label for the release changelog or skip-release (to be applied by maintainers only)
• PR links to GitHub issue with mention Closes #XXXX
• Tests pass
• Checks pass

For new features:

• Tests have been added

For bug fixes:

• There is at least one test that would fail under the original bug conditions.

[coveralls]

Pull Request Test Coverage Report for Build 8692311250

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+4.1%) to 99.788%

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Totals
Change from base Build 8620593363:	4.1%
Covered Lines:	940
Relevant Lines:	942

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💛 - Coveralls

[surchs]

🧑‍🍳

[surchs]

@alyssadai please also remove / update the link here: https://github.com/neurobagel/api?tab=readme-ov-file#set-the-environment-variables