Cleanup: Use HBasicBlock's IsCatchBlock method

We were doing the same thing as that method does so just call it.

Test: art/test/testrunner/testrunner.py --host --64 --optimizing -b
Change-Id: I5a80f0a8c536489f382b9149ccdc1b9f6b251ae3
diff --git a/compiler/optimizing/load_store_elimination.cc b/compiler/optimizing/load_store_elimination.cc
index f520f9c..2ee836a 100644
--- a/compiler/optimizing/load_store_elimination.cc
+++ b/compiler/optimizing/load_store_elimination.cc
@@ -1752,8 +1752,7 @@
   ScopedArenaVector<ValueRecord>& heap_values = heap_values_for_[block->GetBlockId()];
   DCHECK(heap_values.empty());
   size_t num_heap_locations = heap_location_collector_.GetNumberOfHeapLocations();
-  if (block->GetPredecessors().empty() || (block->GetTryCatchInformation() != nullptr &&
-                                           block->GetTryCatchInformation()->IsCatchBlock())) {
+  if (block->GetPredecessors().empty() || block->IsCatchBlock()) {
     DCHECK_IMPLIES(block->GetPredecessors().empty(), block->IsEntryBlock());
     heap_values.resize(num_heap_locations,
                        {/*value=*/Value::PureUnknown(), /*stored_by=*/Value::PureUnknown()});