Revert "debug.c: use new libosmocore features to print and save log filter"

This reverts commit c598e6e0a6d00827c2c974010d582815d66d0f14.

It introduced a dependency from libcommon to libosmovty, which we don't
want
1 file changed
tree: 2065c84299436fd73adc57c7ce8812917dfb5965
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README