[Enhancement] Unify the use of print_log and logger

[LEFTeyex]

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Motivation

Please describe the motivation of this PR and the goal you want to achieve through this PR.

Modification

There are 2 cases:

1. Use print_log, when there is no logger/self.logger.
2. Use logger/self.logger, when print_log and logger/self.logger are present at the same time.

BC-breaking (Optional)

Does the modification introduce changes that break the backward-compatibility of the downstream repos?
If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
3. If the modification has potential influence on downstream projects, this PR should be tested with downstream projects, like MMDet or MMCls.
4. The documentation has been modified accordingly, like docstring or example tutorials.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (main@789330e). Click here to learn what that means.
Patch has no changes to coverable lines.

❗ Current head 7452986 differs from pull request most recent head 7961fab. Consider uploading reports for the commit 7961fab to get more accurate results

Additional details and impacted files

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Flag	Coverage Δ
unittests	76.58% <0.00%> (?)

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