Remove call to WifiActivityEnergyInfo.isValid()

There is no point checking isValid() in Wifi
service (the sender of WifiActivityEnergyInfo).
The receivers already check isValid() anyways.
Thus we can mark isValid() as @hide.

Bug: 148218218
Test: compiles
Change-Id: I9b9251a52ebd623da5795346c6845d98476ff9f8
1 file changed
tree: c04b24fde8ed67d5bdd6c52fdd22c1ae70bc59b6
  1. apex/
  2. service/
  3. PREUPLOAD.cfg