feat(n8n Evaluation Node): Add pre-defined metrics to the "Set Metrics" operation (#17127)

packages/@n8n/nodes-langchain/utils/helpers.ts

@@ -8,7 +8,6 @@ import type { BaseChatMemory } from 'langchain/memory';
 import { NodeConnectionTypes, NodeOperationError, jsonStringify } from 'n8n-workflow';
 import type {
 	AiEvent,
-	INode,
 	IDataObject,
 	IExecuteFunctions,
 	ISupplyDataFunctions,
@@ -251,14 +250,6 @@ export function unwrapNestedOutput(output: Record<string, unknown>): Record<stri
 	return output;
 }
 
-/**
- * Converts a node name to a valid tool name by replacing special characters with underscores
- * and collapsing consecutive underscores into a single one.
- */
-export function nodeNameToToolName(node: INode): string {
-	return node.name.replace(/[\s.?!=+#@&*()[\]{}:;,<>\/\\'"^%$]/g, '_').replace(/_+/g, '_');
-}
-
 /**
  * Detects if a text contains a character that repeats sequentially for a specified threshold.
  * This is used to prevent performance issues with tiktoken on highly repetitive content.