修复小程序讲解页面返回回退

src/utils/hostEnvironment.ts

@@ -43,28 +43,6 @@ export const isEmbeddedInWechatMiniProgram = () => {
   return /miniProgram/i.test(window.navigator?.userAgent || '')
 }
 
-type WechatMiniProgramNavigationBridge = {
-  navigateBack?: (options: { delta: number }) => void
-}
-
-export const navigateBackToWechatMiniProgram = () => {
-  if (!isEmbeddedInWechatMiniProgram() || typeof window === 'undefined') return false
-
-  const bridge = (window as Window & {
-    wx?: { miniProgram?: WechatMiniProgramNavigationBridge }
-  }).wx?.miniProgram
-
-  if (typeof bridge?.navigateBack !== 'function') return false
-
-  try {
-    bridge.navigateBack({ delta: 1 })
-    return true
-  } catch (error) {
-    console.error('返回小程序失败:', error)
-    return false
-  }
-}
-
 export const isWechatMiniProgramRuntime = () => (
   isNativeWechatMiniProgram() || isEmbeddedInWechatMiniProgram()
 )