9210 remove KMDB branch debugging support
9211 ::crregs could do with cr2/cr3 support
9209 ::ttrace should be able to filter by thread
Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>

*** 23,33 ****
  # Use is subject to license terms.
  #
  
  #
  # Copyright (c) 2012 by Delphix. All rights reserved.
! # Copyright (c) 2012 Joyent, Inc. All rights reserved.
  #
  
  KMDBSRCS += \
          ffs.c \
          kaif_start.c \
--- 23,33 ----
  # Use is subject to license terms.
  #
  
  #
  # Copyright (c) 2012 by Delphix. All rights reserved.
! # Copyright (c) 2018 Joyent, Inc. All rights reserved.
  #
  
  KMDBSRCS += \
          ffs.c \
          kaif_start.c \
*** 35,45 ****
          mdb_addrvec.c \
          mdb_argvec.c \
          mdb_callb.c \
          mdb_cmdbuf.c \
          mdb_cmds.c \
-         kvm_cpu.c \
          kmdb_conf.c \
          kmdb_context.c \
          kmdb_create.c \
          mdb_ctf.c \
          kmdb_ctf_open.c \
--- 35,44 ----