remove a number of debug options

remove a number of debug options

* libguile/private-options.h (SCM_BREAKPOINTS_P, SCM_TRACE_P)
  (SCM_REC_PROCNAMES_P, SCM_BACKTRACE_INDENT, SCM_N_FRAMES)
  (SCM_BACKTRACE_MAXDEPTH, SCM_DEVAL_P): Remove these internal names.

* libguile/eval.c (scm_debug_opts): Remove the corresponding debug
  options -- breakpoints, trace, procnames, indent, frames, maxdepth,
  and debug.

* libguile/debug.c (scm_debug_options): Remove SCM_N_FRAMES check.

* test-suite/lib.scm (with-debugging-evaluator*):
* module/scripts/summarize-guile-TODO.scm:
* module/statprof.scm (statprof-reset):
* module/ice-9/boot-9.scm (turn-on-debugging): Remove useless
  debug-enable 'debug calls.

* module/ice-9/deprecated.scm (debug-enable): As it seems that 'debug is
  a particulatly common option that we just removed, add a deprecation
  shim.

* doc/ref/api-options.texi (Debugger options): Update the set of debug
  options.