[BUG]: Remove redundant load_labels_file method

[dagardner-nv]

Version

24.10

Which installation method(s) does this occur on?

Source

Describe the bug.

We have two identical versions of this method:

• python/morpheus/morpheus/cli/utils.py
• python/morpheus/morpheus/utils/file_utils.py

Minimum reproducible example

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Relevant log output

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Full env printout

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Other/Misc.

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Code of Conduct

• I agree to follow Morpheus' Code of Conduct
• I have searched the open bugs and have found no duplicates for this bug report