qcacmn: Remove event report when failed to allocate memory

qcacld-2.0 to qcacld-3.0 propagation

There will be recursive call for vos_mem_malloc once there is memory
allocation failure, because vos_mem_malloc is called to allocate message
buffer for WIFI_EVENT_MEMORY_FAILURE.

Remove this event report in this change.

Change-Id: I897af2428af7e21c2962d5c91969930125178e74
CRs-Fixed: 2010103

qdf/linux/src/qdf_mem.c

@@ -949,9 +949,6 @@ void *qdf_mem_malloc_debug(size_t size,
 		mem_ptr = (void *)(mem_struct + 1);
 	}
 
-	if (!mem_ptr)
-		host_log_low_resource_failure(WIFI_EVENT_MEMORY_FAILURE);
-
 	return mem_ptr;
 }
 EXPORT_SYMBOL(qdf_mem_malloc_debug);