core: Fix crash when running without -E option
core: Fix crash when running without -E option

LEAdvertisingManager1 is still experimental interface and should be
optional. Crash was due to missing removal from adapters list in case
of error (which is no longer needed).

bluetoothd[19358]: Unable to register new adapter
bluetoothd[19358]: src/adapter.c:btd_adapter_unref() Freeing adapter /org/bluez/hci0
bluetoothd[19358]: src/adapter.c:adapter_free() 0x4d1ce10
bluetoothd[19358]: src/profile.c:register_profile() sender :1.59
bluetoothd[19358]: src/profile.c:create_ext() Created "Message Notification"
==19358== Invalid read of size 4
==19358==    at 0x462FC9: adapter_add_profile (adapter.c:3083)
==19358==    by 0x36A7E66477: g_slist_foreach (in /usr/lib64/libglib-2.0.so.0.3800.2)
==19358==    by 0x46825A: register_profile (profile.c:2280)
==19358==    by 0x484923: process_message.isra.5 (object.c:259)
==19358==    by 0x36A9A1DF85: ??? (in /usr/lib64/libdbus-1.so.3.7.12)
==19358==    by 0x36A9A100D8: dbus_connection_dispatch (in /usr/lib64/libdbus-1.so.3.7.12)
==19358==    by 0x48169F: message_dispatch (mainloop.c:72)
==19358==    by 0x36A7E492A5: g_main_context_dispatch (in /usr/lib64/libglib-2.0.so.0.3800.2)
==19358==    by 0x36A7E49627: ??? (in /usr/lib64/libglib-2.0.so.0.3800.2)
==19358==    by 0x36A7E49A39: g_main_loop_run (in /usr/lib64/libglib-2.0.so.0.3800.2)
==19358==    by 0x40AE55: main (main.c:661)
==19358==  Address 0x4d1cf00 is 240 bytes inside a block of size 320 free'd
==19358==    at 0x4A07577: free (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==19358==    by 0x36A7E4EF7E: g_free (in /usr/lib64/libglib-2.0.so.0.3800.2)
==19358==    by 0x483B75: remove_interface (object.c:658)
==19358==    by 0x484099: g_dbus_unregister_interface (object.c:1382)
==19358==    by 0x4649B9: read_info_complete (adapter.c:7267)
==19358==    by 0x488215: request_complete (mgmt.c:242)
==19358==    by 0x488B6C: can_read_data (mgmt.c:321)
==19358==    by 0x492D54: watch_callback (io-glib.c:170)
==19358==    by 0x36A7E492A5: g_main_context_dispatch (in /usr/lib64/libglib-2.0.so.0.3800.2)
==19358==    by 0x36A7E49627: ??? (in /usr/lib64/libglib-2.0.so.0.3800.2)
==19358==    by 0x36A7E49A39: g_main_loop_run (in /usr/lib64/libglib-2.0.so.0.3800.2)
==19358==    by 0x40AE55: main (main.c:661)

ComputeCycles/bluez,silent-snowman/bluez,pkarasev3/bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez,pstglia/external-bluetooth-bluez,ComputeCycles/bluez,mapfau/bluez,pkarasev3/bluez,mapfau/bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez,ComputeCycles/bluez,mapfau/bluez,pkarasev3/bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez,pkarasev3/bluez,mapfau/bluez,ComputeCycles/bluez