obexd/bluetooth: Remove unused local variables

obexd/bluetooth: Remove unused local variables

This ix following build errors:

  CC     obexd/plugins/obexd-bluetooth.o
obexd/plugins/bluetooth.c: In function ‘register_profile_reply’:
obexd/plugins/bluetooth.c:202:10: error: unused variable ‘err’
    [-Werror=unused-variable]

obexd/plugins/bluetooth.c: In function ‘name_acquired’:
obexd/plugins/bluetooth.c:367:15: error: unused variable ‘uuid’
    [-Werror=unused-variable]

obexd/plugins/bluetooth.c: In function ‘name_released’:
obexd/plugins/bluetooth.c:389:15: error: unused variable ‘uuid’
    [-Werror=unused-variable]

obexd/plugins/bluetooth.c: In function ‘bluetooth_start’:
obexd/plugins/bluetooth.c:400:10: error: unused variable ‘ios’
    [-Werror=unused-variable]