Fixed the total requested memory size after a big block free

src/dmmlib.c

@@ -163,8 +163,7 @@ void free(void *ptr) {
                 systemallocator.dmm_stats.total_mem_allocated);
 #ifdef REQUEST_SIZE_INFO
         systemallocator.dmm_stats.total_mem_requested -=
-            current_raw_block->size - sizeof(raw_block_header_t) -
-            sizeof(bitmap_rb_t); // FIXME allocation size is like that currently
+            current_raw_block->size - sizeof(raw_block_header_t);
         TRACE_1("dmmlib - global requested memory: %zu bytes\n",
                 systemallocator.dmm_stats.total_mem_requested);
 #endif /* REQUEST_SIZE_INFO */