Remove DISALLOW_* from vector, set, and map

Some of the build bots, still fail on this.  I suppose mine pass because
I enable C++11...

Anyway, remove these again.

src/hb-map-private.hh

@@ -198,9 +198,6 @@ struct hb_map_t
     }
     return tombstone == INVALID ? i : tombstone;
   }
-
-  private:
-  HB_DISALLOW_COPY_AND_ASSIGN (hb_map_t);
 };
 
 

src/hb-private.hh

@@ -536,9 +536,6 @@ _hb_ceil_to_4 (unsigned int v)
  *
  */
 
-#define HB_DISALLOW_ASSIGN(TypeName) \
-  void operator=(const TypeName&)
-
 #define HB_DISALLOW_COPY_AND_ASSIGN(TypeName) \
   TypeName(const TypeName&); \
   void operator=(const TypeName&)
@@ -825,9 +822,6 @@ struct hb_vector_t
     arrayZ = nullptr;
     allocated = len = 0;
   }
-
-  private:
-  HB_DISALLOW_ASSIGN (hb_vector_t);
 };
 
 template <typename Type>

src/hb-set-private.hh

@@ -677,9 +677,6 @@ struct hb_set_t
   inline const page_t &page_at (unsigned int i) const { return pages[page_map[i].index]; }
   inline unsigned int get_major (hb_codepoint_t g) const { return g / page_t::PAGE_BITS; }
   inline hb_codepoint_t major_start (unsigned int major) const { return major * page_t::PAGE_BITS; }
-
-  private:
-  HB_DISALLOW_COPY_AND_ASSIGN (hb_set_t);
 };
 
 

src/hb-subset-plan.hh

@@ -35,7 +35,8 @@
 #include "hb-object-private.hh"
 #include "hb-map-private.hh"
 
-struct hb_subset_plan_t {
+struct hb_subset_plan_t
+{
   hb_object_header_t header;
   ASSERT_POD ();