Revert "fdo#60486 Fix auto-enabling bluetooth and improve bluetooth handling."

This will be superceded by the following sdremote improvments, which
would otherwise have path conflicts due to this patch.

This reverts commit 3cc31f89787e435c893b38a0adc0a23f566ab60f.

Change-Id: I49f004d068fdf852f5690e365a17168b001b9136
get rid of some useless indirection/wrapper functions

there's no point in adding a layer of indirection if all that the called
function does is running one single command, and is only called in one
place. Getting rid of that indirection makes the code easier to read and
understand.

Change-Id: Ie2f3e03fe2870d1d4a84df738ebb3d0f34a2713c
Reviewed-on: https://gerrit.libreoffice.org/7089
Reviewed-by: Andrzej Hunt <andrzej.hunt@collabora.com>
Tested-by: Andrzej Hunt <andrzej.hunt@collabora.com>