Revert "ConnectivityServiceTest: more informative assert failures"

CL https://android-review.googlesource.com/#/c/420720/ is
breaking several internal builds, and CL
https://android-review.googlesource.com/#/c/422480/ must
be reverted beforehand.

This reverts commit a6981669c4e2707bcfb3db001e262b2da4bb9c17.

Change-Id: I5883409452d39e1834e183aa7b5ccdbf14291ca5
1 file changed