Remove use of volatile in stored_field_cmp_to_item

This was added in c796415 but would hurt all other compilers because of Visual Studio. Hopefully this has been fixed now. Signed-off-by: Daniel Black <daniel@linux.vnet.ibm.com>

Author: grooverdan

sql/item.cc

@@ -8924,15 +8924,10 @@ int stored_field_cmp_to_item(THD *thd, Field *field, Item *item)
  }
  return my_time_compare(&field_time, &item_time);
  }
- /*
- The patch for Bug#13463415 started using this function for comparing
- BIGINTs. That uncovered a bug in Visual Studio 32bit optimized mode.
- Prefixing the auto variables with volatile fixes the problem....
- */
- volatile double result= item->val_real();
+ double result= item->val_real();
  if (item->null_value)
  return 0;
- volatile double field_result= field->val_real();
+ double field_result= field->val_real();
  if (field_result < result)
  return -1;
  else if (field_result > result)