rosemary: Switch to Pixel thermal service

proprietary/vendor/etc/init/android.hardware.thermal@2.0-service.mtk.rc

@@ -1,7 +0,0 @@
-service vendor.thermal-hal-2-0.mtk /vendor/bin/hw/android.hardware.thermal@2.0-service.mtk
-    interface android.hardware.thermal@1.0::IThermal default
-    interface android.hardware.thermal@2.0::IThermal default
-    socket thermal_hal_socket stream 660 root system
-    class hal
-    user system
-    group system