Remove reference to obsolete iot_cts_compatible.mk

Intentionally empty. Removed before merge.

Bug: 78523993
Test: Builds
Change-Id: I5332bfb9e2cce7b9e8805254913405e8a3a506f7
(cherry picked from commit 5595034c34f057209acee3970db9b58f5ffba9e0)