[autofit] Remove unused structure members.

* src/autofit/afhints.h (AF_SegmentRec, AF_EdgeRec): Remove
`num_linked'.

* src/autofit/afcjk.c (af_cjk_hints_link_segments): Updated.

ChangeLog

@@ -1,3 +1,12 @@
+2016-07-02  Werner Lemberg  <wl@gnu.org>
+
+	[autofit] Remove unused structure members.
+
+	* src/autofit/afhints.h (AF_SegmentRec, AF_EdgeRec): Remove
+	`num_linked'.
+
+	* src/autofit/afcjk.c (af_cjk_hints_link_segments): Updated.
+
 2016-07-02  Werner Lemberg  <wl@gnu.org>
 
 	[autofit] Update to Unicode 9.0.0.

src/autofit/afcjk.c

@@ -966,15 +966,12 @@
 
       if ( seg2 )
       {
-        seg2->num_linked++;
         if ( seg2->link != seg1 )
         {
           seg1->link = NULL;
 
           if ( seg2->score < dist_threshold || seg1->score < seg2->score * 4 )
             seg1->serif = seg2->link;
-          else
-            seg2->num_linked--;
         }
       }
     }

src/autofit/afhints.h

@@ -269,7 +269,6 @@ FT_BEGIN_HEADER
 
     AF_Segment  link;        /* (stem) link segment        */
     AF_Segment  serif;       /* primary segment for serifs */
-    FT_Pos      num_linked;  /* number of linked segments  */
     FT_Pos      score;       /* used during stem matching  */
     FT_Pos      len;         /* used during stem matching  */
 
@@ -292,7 +291,6 @@ FT_BEGIN_HEADER
     AF_Width    blue_edge;  /* non-NULL if this is a blue edge */
     AF_Edge     link;       /* link edge                       */
     AF_Edge     serif;      /* primary edge for serifs         */
-    FT_Short    num_linked; /* number of linked edges          */
     FT_Int      score;      /* used during stem matching       */
 
     AF_Segment  first;      /* first segment in edge */