This reverts commit 6371d37b6c0f7031c3da596a5149227c36a2d753.

This commit introduced a bug where service latencies could be negative.
I believe this happens when the sessionEndParse phase time is not set.
Reverting this commit until we have a proper fix.

Fixes #45011
Fixes #54087

Release justification: release blocker fix

Release note: None