10886 smatch debug macro cleanup in usr/src/uts

*** 23,32 ****
--- 23,36 ----
  /*
   * Ralink Technology RT2561, RT2561S and RT2661  chipset driver
   * http://www.ralinktech.com/
   */
  
+ /*
+  * Copyright 2019 Joyent, Inc.
+  */
+ 
  #include <sys/types.h>
  #include <sys/byteorder.h>
  #include <sys/conf.h>
  #include <sys/cmn_err.h>
  #include <sys/stat.h>
*** 75,85 ****
  
  #ifdef DEBUG
  #define RWD_DEBUG \
          rt2661_debug
  #else
! #define RWD_DEBUG
  #endif
  
  static void *rt2661_soft_state_p = NULL;
  
  static const uint8_t *ucode = NULL;
--- 79,89 ----
  
  #ifdef DEBUG
  #define RWD_DEBUG \
          rt2661_debug
  #else
! #define RWD_DEBUG(...) (void)(0)
  #endif
  
  static void *rt2661_soft_state_p = NULL;
  
  static const uint8_t *ucode = NULL;