Remove stale sensor service code

Sensor service no longer exists, so remove the client code to connect to
it.

Bug: 69567797

Test: Confirmed pdx_tool no longer prints an error about failing to
connect to sensor service.

Change-Id: Id5e97b1e262195d0bce8ceeb3f74676490cc922a
(cherry picked from commit 99183e6bf8307acaf601392e2d0b08d9be760513)