wbemprox: Also free data for tables that don't have a fill function (Valgrind).

dlls/wbemprox/table.c

@@ -334,6 +334,7 @@ void free_table( struct table *table )
         TRACE("destroying %p\n", table);
         heap_free( (WCHAR *)table->name );
         free_columns( (struct column *)table->columns, table->num_cols );
+        heap_free( table->data );
         list_remove( &table->entry );
         heap_free( table );
     }