bug#10330 - linking with ndb fails

  changes to handling of new/delete cxa_pure_virtual has changed in mysys
  remove "ndb"'s own impl. as they are no longer needed as we link mysys at all places

ndb/src/common/portlib/gcc.cpp

@@ -2,6 +2,6 @@
 /**
  * GCC linking problem...
  */
-#ifdef DEFINE_CXA_PURE_VIRTUAL
+#if 0
 extern "C" { int __cxa_pure_virtual() { return 0;} }
 #endif

ndb/src/common/util/new.cpp

@@ -6,7 +6,7 @@ extern "C" {
   void (* ndb_new_handler)() = 0;
 }
 
-#ifdef USE_MYSYS_NEW
+#if 0
 
 void *operator new (size_t sz)
 {