remove the com.android.threadnetwork from apex_available list

The ot-daemon has been moved from the com.android.threadnetwork to
com.android.tethering. No need to add the com.android.threadnetwork
to the apex_available list.

Bug: b/312573093
Test: Build
Change-Id: I2216e0d2a1d30738c405a174909d174cbc1f0bc7
1 file changed