Don't free anything when reporting leaks.

We don't know that they're not going to be cleaned up by a
C++ global destructor that runs after us. This is the case with
bootanimation, for example.

Bug: 7291287
Change-Id: Iba402514d1735fdc2ae4bc95b65396d816be46c0

libc/bionic/malloc_debug_check.cpp

@@ -362,8 +362,6 @@ extern "C" void chk_free(void *ptr) {
             log_message("+++ ALLOCATION %p IS CORRUPTED OR NOT ALLOCATED VIA TRACKER!\n",
                        user(hdr));
             log_backtrace(gMapInfo, bt, depth);
-            /* Leak here so that we do not crash */
-            //dlfree(user(hdr));
         }
     } else {
         hdr->freed_bt_depth = get_backtrace(hdr->freed_bt,
@@ -459,14 +457,12 @@ static void heaptracker_free_leaked_memory() {
             /* safe == 1, because the allocation is valid */
             log_backtrace(gMapInfo, del->bt, del->bt_depth);
         }
-        dlfree(del);
     }
 
 //  log_message("+++ DELETING %d BACKLOGGED ALLOCATIONS\n", backlog_num);
     while (backlog_head) {
         del = backlog_tail;
         del_from_backlog(del);
-        dlfree(del);
     }
 }