base: remove allocation warning in heap

The heap typically first tries to allocate larger chunks than necessary, and
if it fails the actual minimal one. The first attempt already triggers warnings
which are not critical at all. If the second (critical) allocation fails,
then there are additionally checks and warnings already in place.

Issue #1039

repos/base/src/lib/base/heap.cc

@@ -90,7 +90,6 @@ Heap::Dataspace *Heap::_allocate_dataspace(size_t size, bool enforce_separate_me
 		new_ds_cap = _ds_pool.ram_session->alloc(size);
 		ds_addr = _ds_pool.region_map->attach(new_ds_cap);
 	} catch (Ram_session::Alloc_failed) {
-		warning("could not allocate new dataspace of size ", size);
 		return 0;
 	} catch (Region_map::Attach_failed) {
 		warning("could not attach dataspace");