message: localDCE: Remove can_delete check entirely
  Summary: After {D4397080} and {D4393135} I think it's no longer necessary
diff: @@ -248,19 +248,7 @@ class LocalDce {
  s->preds().end());
  }
  - bool can_delete(Block* b) {
  - auto first = b->begin();
  - if (first == b->end()) {
  - return false;
  - }
  - return true;
  - }
  -
  void remove_block(MethodTransform* transform, Block* b) {
  - if (!can_delete(b)) {
  - return;
  - }
  - std::unordered_set<DexInstruction*> delete_ops;
  for (auto& mei : *b) {
  if (mei.type == MFLOW_OPCODE) {
  transform->remove_opcode(mei.insn);
  