Remove unsupported and misleading configuration options

Remove unsupported and misleading configuration options

 - Remove TIZEN_FEATURE_PTRACE_CALLSTACK option

   Crash report generation method has been reworked
   and does not depend on ptrace anymore.

 - Remove TIZEN_ENABLE_MINICOREDUMPER option

   Minicoredumper is required to dump PRSTATUS, which
   is later used by crash-manager (for D-Bus signal)
   and by crash-stack (for callstack unwinding)

 - Remove TIZEN_ENABLE_COREDUMP option

   crash-pipe does not dump PRSTATUS so can not be
   used as an option (see above).

Consequently, enabling/disabling coredumps has been
moved to configuration file (DumpCore=0/1).

Change-Id: If535acfe7e64fdde0a8b50afd8b3a1f44fda2490