Move redundant modelBuffer check to metadata.cpp

Author: MirceaDan99

src/plugins/intel_npu/src/plugin/src/metadata.cpp

@@ -147,6 +147,9 @@ std::unique_ptr<MetadataBase> read_metadata_from(std::istream& stream) {
 
 std::unique_ptr<MetadataBase> read_metadata_from(std::istream& stream, const std::shared_ptr<ov::AlignedBuffer>& modelBuffer) {
     Logger logger("NPUPlugin", Logger::global().level());
+    if (modelBuffer == nullptr) {
+        return read_metadata_from(stream);
+    }
     size_t magicBytesSize = MAGIC_BYTES.size();
     std::string blobMagicBytes;
     blobMagicBytes.resize(magicBytesSize);

src/plugins/intel_npu/src/plugin/src/plugin.cpp

@@ -760,13 +760,7 @@ std::shared_ptr<ov::ICompiledModel> Plugin::import_model(std::istream& stream, c
         auto compiler = compilerAdapterFactory.getCompiler(_backends->getIEngineBackend(), localConfig);
 
         std::unique_ptr<BlobContainer> blobPtr;
-        std::unique_ptr<MetadataBase> storedMeta;
-
-        if (dynamic_cast<ov::OwningSharedStreamBuffer*>(stream.rdbuf())) {
-            storedMeta = read_metadata_from(stream, dynamic_cast<ov::OwningSharedStreamBuffer*>(stream.rdbuf())->get_buffer());
-        } else {
-            storedMeta = read_metadata_from(stream);
-        }
+        auto storedMeta = read_metadata_from(stream, modelBuffer);
 
         if (storedMeta == nullptr) {
             OPENVINO_THROW("Could not read metadata!");
@@ -788,11 +782,6 @@ std::shared_ptr<ov::ICompiledModel> Plugin::import_model(std::istream& stream, c
             blobPtr = std::make_unique<BlobContainerAlignedBuffer>(modelBuffer, storedMeta->get_ov_header_offset(), graphSize);
         }
 
-        auto storedMeta = read_metadata_from(blob);
-        if (!storedMeta->is_compatible()) {
-            OPENVINO_THROW("Incompatible blob version!");
-        }
-
         auto graph = compiler->parse(std::move(blobPtr), localConfig);
         graph->update_network_name("net" + std::to_string(_compiledModelLoadCounter++));