diff --git a/src/hb-machinery.hh b/src/hb-machinery.hh
index ccd66d1a816b86a2f687072d797eb24761e5a5ab..acd3aeddd3ac34e6483558c9c9e96b3362142f15 100644
--- a/src/hb-machinery.hh
+++ b/src/hb-machinery.hh
@@ -123,12 +123,6 @@ static inline Type& StructAfter(TObject &X)
   inline unsigned int get_size (void) const { return (size - (array).min_size + (array).get_size ()); } \
   DEFINE_SIZE_ARRAY(size, array)
 
-#define DEFINE_SIZE_ARRAY2(size, array1, array2) \
-  DEFINE_INSTANCE_ASSERTION (alignof (*this) == 1 && \
-			     sizeof (*this) == (size) + sizeof (this->array1[0]) + sizeof (this->array2[0])); \
-  DEFINE_COMPILES_ASSERTION ((void) (array1)[0].static_size; (void) (array2)[0].static_size) \
-  static const unsigned int min_size = (size)
-
 
 /*
  * Dispatch
diff --git a/src/hb-ot-layout-common.hh b/src/hb-ot-layout-common.hh
index 55b05b5136db54f562e52d3b5b0c1cad21c43ffc..46c2f182d699cdd3edda4fd2cf2288dcd872f146 100644
--- a/src/hb-ot-layout-common.hh
+++ b/src/hb-ot-layout-common.hh
@@ -802,11 +802,11 @@ struct Lookup
   HBUINT16	lookupFlag;		/* Lookup qualifiers */
   ArrayOf<Offset16>
 		subTable;		/* Array of SubTables */
-  HBUINT16	markFilteringSetX[VAR];	/* Index (base 0) into GDEF mark glyph sets
+/*HBUINT16	markFilteringSetX[VAR];*//* Index (base 0) into GDEF mark glyph sets
 					 * structure. This field is only present if bit
 					 * UseMarkFilteringSet of lookup flags is set. */
   public:
-  DEFINE_SIZE_ARRAY2 (6, subTable, markFilteringSetX);
+  DEFINE_SIZE_ARRAY (6, subTable);
 };
 
 typedef OffsetListOf<Lookup> LookupList;
@@ -1568,9 +1568,9 @@ struct VarData
   HBUINT16		itemCount;
   HBUINT16		shortCount;
   ArrayOf<HBUINT16>	regionIndices;
-  UnsizedArrayOf<HBUINT8>bytesX;
+/*UnsizedArrayOf<HBUINT8>bytesX;*/
   public:
-  DEFINE_SIZE_ARRAY2 (6, regionIndices, bytesX);
+  DEFINE_SIZE_ARRAY (6, regionIndices);
 };
 
 struct VariationStore
diff --git a/src/hb-ot-post-table.hh b/src/hb-ot-post-table.hh
index f80303cc8babe663976bc4b45ca6580bc4c7f094..98df3e7801c6e0aa15c5042d9338ba35aa4dd1f9 100644
--- a/src/hb-ot-post-table.hh
+++ b/src/hb-ot-post-table.hh
@@ -61,12 +61,12 @@ struct postV2Tail
   ArrayOf<HBUINT16>	glyphNameIndex;	/* This is not an offset, but is the
 					 * ordinal number of the glyph in 'post'
 					 * string tables. */
-  UnsizedArrayOf<HBUINT8>
-			namesX;		/* Glyph names with length bytes [variable]
+/*UnsizedArrayOf<HBUINT8>
+			namesX;*/	/* Glyph names with length bytes [variable]
 					 * (a Pascal string). */
 
   public:
-  DEFINE_SIZE_ARRAY2 (2, glyphNameIndex, namesX);
+  DEFINE_SIZE_ARRAY (2, glyphNameIndex);
 };
 
 struct post