Revert "Handle runtime sensor events even if there are no real ones."

This reverts commit 3b9574a6.

Reason for revert: potential culprit for b/291461814

Bug: 291461814
Test: m
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:e9cb5b159c6bf1c76576845d4bacd752ce79f8e1)
Merged-In: Ib92a05135a05978d8d4e6a938df1c6fb5b8169e2
Change-Id: Ib92a05135a05978d8d4e6a938df1c6fb5b8169e2