[WebNN] Remove some useless verbose logs (microsoft#22690)

These logs are not quite useful and create a lot of noise during
debugging, especially when working with large models.

Author: Honry

onnxruntime/core/providers/webnn/builders/helper.cc

@@ -122,7 +122,6 @@ std::vector<std::vector<NodeIndex>> GetSupportedNodes(const GraphViewer& graph_v
     bool supported = false;
     // Firstly check if platform supports the WebNN op.
     if (CheckSingleOp(node->OpType(), wnn_builder, device_type)) {
-      LOGS(logger, VERBOSE) << "Operator type: [" << node->OpType() << "] is supported by browser";
       supported = IsNodeSupported(*node, graph_viewer, device_type, wnn_limits, logger);
     }
 

onnxruntime/core/providers/webnn/builders/impl/base_op_builder.cc

@@ -21,8 +21,6 @@ Status BaseOpBuilder::AddToModelBuilder(ModelBuilder& model_builder, const Node&
                     model_builder.GetOpSupportLimits(), logger),
       "Unsupported operator ", node.OpType());
   ORT_RETURN_IF_ERROR(AddToModelBuilderImpl(model_builder, node, logger));
-  LOGS(logger, VERBOSE) << "Operator name: [" << node.Name()
-                        << "] type: [" << node.OpType() << "] was added";
   return Status::OK();
 }
 

onnxruntime/core/providers/webnn/builders/impl/concat_op_builder.cc

@@ -42,7 +42,6 @@ Status ConcatOpBuilder::AddToModelBuilderImpl(ModelBuilder& model_builder,
 
   std::vector<emscripten::val> inputs;
   for (const auto* input : input_defs) {
-    LOGS(logger, VERBOSE) << "input name " << input->Name();
     inputs.push_back(model_builder.GetOperand(input->Name()));
   }