Unused macro

* node.h (nd_argc): nd_argc has been unused since r24128.
* .gdbinit (nd_argc): ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

.gdbinit

@@ -797,12 +797,6 @@ define nd_new
 end
 
 
-define nd_argc
-  printf "%su2.argc%s: ", $color_highlite, $color_end
-  p ($arg0).u2.argc
-end
-
-
 define nd_cname
   printf "%su1.id%s: ", $color_highlite, $color_end
   p ($arg0).u1.id

node.h

@@ -349,8 +349,6 @@ typedef struct RNode {
 #define nd_noex  u3.id
 #define nd_defn  u3.node
 
-#define nd_argc  u2.argc
-
 #define nd_cpath u1.node
 #define nd_super u3.node