Remove all CTS tests verifying PWLE V1 behaviour

PWLE V1 APIs were never made public, so this change should have no
effect on current behaviour.

VibratorFrequencyProfile class will be flagged in an upcoming CL, so
we're removing the tests for now, and will add them back (flagged) in
that CL.

Fix: 347034419
Flag: TEST_ONLY
Test: atest VibratorTest
Change-Id: I92ddce7d4b880e399a124e1d01a4d2daca3d1b08