feat: remove inject model system prompt

Author: 常少鹏

src/renderer/packages/models/ark.ts

@@ -46,8 +46,6 @@ export default class VolcArk extends Base {
     ): Promise<string> {
         const model = this.options.arkEndpointId
 
-        rawMessages = injectModelSystemPrompt(model, rawMessages)
-
         const messages = await populateGPTMessage(rawMessages)
         return this.requestChatCompletionsStream(
             {
@@ -149,23 +147,6 @@ export async function populateGPTMessage(rawMessages: Message[]): Promise<OpenAI
     return messages
 }
 
-export function injectModelSystemPrompt(model: string, messages: Message[]) {
-    const metadataPrompt = `
-Current model: ${model}
-Current date: ${new Date().toISOString()}
-
-`
-    let hasInjected = false
-    return messages.map((m) => {
-        if (m.role === 'system' && !hasInjected) {
-            m = { ...m }
-            m.content = metadataPrompt + m.content
-            hasInjected = true
-        }
-        return m
-    })
-}
-
 export interface OpenAIMessage {
     role: 'system' | 'user' | 'assistant'
     content: string