Remove unused variable

Author: ericcraw

onnxruntime/core/providers/openvino/openvino_execution_provider.cc

@@ -115,10 +115,6 @@ common::Status OpenVINOExecutionProvider::Compile(
     session_context_.onnx_model_path_name = graph_body_viewer_0.ModelPath().string();
     session_context_.onnx_opset_version =
         graph_body_viewer_0.DomainToVersionMap().at(kOnnxDomain);
-
-    // OVIR wrapped in epctx should be treated as source but this code does not
-    // This corner case is not in use and will be addressed in a future commit
-    is_epctx_model = ep_ctx_handle_.CheckForOVEPCtxNodeInGraph(graph_body_viewer_0);
   }
 
   shared_context_ = ep_ctx_handle_.Initialize(fused_nodes, session_context_);