Merge pull request #901 from schok6/fix-remove_n_in_dtri

remove no longer needed entry for default_triangles

doc/author_schoenlein.txt

@@ -0,0 +1,2 @@
+I place my contributions to t8code under the FreeBSD license.
+Katrin Schönlein (katrin.schoenlein@dlr.de)

src/t8_schemes/t8_default/t8_default_tri/t8_dtri.h

@@ -67,7 +67,6 @@ typedef struct t8_dtri
   int8_t level;
   t8_dtri_type_t type;
   t8_dtri_coord_t x, y;
-  t8_dtri_coord_t n;
 } t8_dtri_t;
 
 T8_EXTERN_C_END ();

src/t8_schemes/t8_default/t8_default_tri/t8_dtri_bits.c

@@ -211,7 +211,6 @@ t8_dtri_ancestor (const t8_dtri_t *t, int level, t8_dtri_t *ancestor)
     ancestor->type = t->type;
   }
 
-  ancestor->n = t->n;
 #else
   /* The sign of each diff reduces the number of possible types
  * for the ancestor. At the end only one possible type is left,
@@ -1499,8 +1498,6 @@ t8_dtri_init_linear_id (t8_dtri_t *t, t8_linearidx_t id, int level)
   t->y = 0;
 #ifdef T8_DTRI_TO_DTET
   t->z = 0;
-#else
-  t->n = 0;
 #endif
   type = 0; /* This is the type of the root triangle */
   for (i = 1; i <= level; i++) {
@@ -1529,8 +1526,6 @@ t8_dtri_init_root (t8_dtri_t *t)
   t->y = 0;
 #ifdef T8_DTRI_TO_DTET
   t->z = 0;
-#else
-  t->n = 0;
 #endif
 }
 
@@ -1698,9 +1693,6 @@ t8_dtri_is_valid (const t8_dtri_t *t)
   /* for tets the eclass is set. */
   is_valid = is_valid && t->eclass_int8 == T8_ECLASS_TET;
 #endif
-#else
-  /* n is 0 (we currently do not use n) */
-  is_valid = is_valid && t->n == 0;
 #endif
   /* Its type is in the valid range */
   is_valid = is_valid && 0 <= t->type && t->type < T8_DTRI_NUM_TYPES;