Revert "Lazy load metrics listener (#320)"

[joeyzhao2018]

This reverts commit 47c5508.

What does this PR do?

Revert the commit 47c5508 as it is causing the metrics and traces not sent.
The tests done for the original commit 47c5508 was not correctly setup and caused confusion.

Motivation

Testing Guidelines

Additional Notes

Types of Changes

• Bug fix
• New feature
• Breaking change
• Misc (docs, refactoring, dependency upgrade, etc.)

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