4623 Remove -Wno-unused-label from mpt_sas
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
Reviewed by: Keith Wesolowski <keith.wesolowski@joyent.com>
Reviewed by: Albert Lee <trisk@nexenta.com>
Approved by: Robert Mustacchi <rm@joyent.com>

*** 60,70 ****
  #
  include $(UTSBASE)/intel/Makefile.intel
  
  CERRWARN        += -_gcc=-Wno-parentheses
  CERRWARN        += -_gcc=-Wno-uninitialized
- CERRWARN        += -_gcc=-Wno-unused-label
  CERRWARN        += -_gcc=-Wno-switch
  
  #
  #       Default build targets.
  #
--- 60,69 ----