Remove parent from PlaidML tensor initializer (#2923)

* Remove parent from PlaidML tensor initializer

* Remove plaidml tensor parent plumbing

* style

src/ngraph/runtime/plaidml/plaidml_backend.cpp

@@ -31,15 +31,14 @@ ngraph::runtime::plaidml::PlaidML_Backend::PlaidML_Backend(const char* configura
 std::shared_ptr<ngraph::runtime::Tensor> ngraph::runtime::plaidml::PlaidML_Backend::create_tensor(
     const ngraph::element::Type& element_type, const ngraph::Shape& shape)
 {
-    return std::make_shared<PlaidML_Tensor>(
-        this, &m_config, element_type, shape, "direct_data", nullptr);
+    return std::make_shared<PlaidML_Tensor>(&m_config, element_type, shape, "direct_data", nullptr);
 }
 
 std::shared_ptr<ngraph::runtime::Tensor> ngraph::runtime::plaidml::PlaidML_Backend::create_tensor(
     const ngraph::element::Type& element_type, const Shape& shape, void* memory_pointer)
 {
     return std::make_shared<PlaidML_Tensor>(
-        this, &m_config, element_type, shape, "direct_data", memory_pointer);
+        &m_config, element_type, shape, "direct_data", memory_pointer);
 }
 
 std::shared_ptr<ngraph::runtime::Executable>

src/ngraph/runtime/plaidml/plaidml_tensor.cpp

@@ -22,13 +22,12 @@
 
 namespace vp = vertexai::plaidml;
 
-ngraph::runtime::plaidml::PlaidML_Tensor::PlaidML_Tensor(Backend* parent,
-                                                         Config* config,
+ngraph::runtime::plaidml::PlaidML_Tensor::PlaidML_Tensor(Config* config,
                                                          const ngraph::element::Type& element_type,
                                                          const ngraph::Shape& shape,
                                                          const std::string& name,
                                                          void* memory)
-    : Tensor{std::make_shared<ngraph::descriptor::Tensor>(element_type, shape, name), parent}
+    : Tensor{std::make_shared<ngraph::descriptor::Tensor>(element_type, shape, name)}
     , m_tensor{config->dev->allocate(
           to_plaidml(config->ctx, element_type, shape, ConversionUse::FOR_IO))}
     , m_memory{memory}

src/ngraph/runtime/plaidml/plaidml_tensor.hpp

@@ -35,8 +35,7 @@ namespace ngraph
 class ngraph::runtime::plaidml::PlaidML_Tensor final : public ngraph::runtime::Tensor
 {
 public:
-    PlaidML_Tensor(Backend* parent,
-                   Config* config,
+    PlaidML_Tensor(Config* config,
                    const ngraph::element::Type& element_type,
                    const ngraph::Shape& shape,
                    const std::string& name,