CMake: remove a debugging message
CMake: remove a debugging message

Signed-off-by: David Wagner <60228a510f9a76940848fa2d29321fc4edfc2119@intel.com>

dawagner/parameter-framework-plugins-alsa,android-ia/vendor_intel_hardware_audiocomms_parameter-framework_plugins_alsa,01org/parameter-framework-plugins-alsa,clero/parameter-framework-plugins-alsa