Revert "Add SystemCommunicationTest CDM CTS test"

This reverts commit b7ab5cf9691f0731d31c831c5c7eadea64da515f.

Reason for revert: this CL added a CTS test for APIs that are being removed.

Change-Id: Id561b4e09f83032db215faa3ee9944bf5f80ff4b
2 files changed