x86, ptrace: remove CONFIG guards around declarations

Remove unnecessary CONFIG guards around type declarations and macro
definitions.

Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Cc: markus.t.metzger@gmail.com
Cc: roland@redhat.com
Cc: eranian@googlemail.com
Cc: oleg@redhat.com
Cc: juan.villacis@intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>