Revert "Merge branch 'u/kawaiwan/make-prom-signalflow-use-ready-pods' of github.com:Yelp/paasta"
Revert "Merge branch 'u/kawaiwan/make-prom-signalflow-use-ready-pods' of github.com:Yelp/paasta"

This reverts commit 18703921d59c1a5e845ce2ad9f728a972ff5b0a2, reversing
changes made to e9fb23979faed31c00b423177f608ad29da2c3cf.

Yelp/paasta,Yelp/paasta