ai proxy support passthrough path when api name is unknown (#1754)

plugins/wasm-go/extensions/ai-proxy/provider/provider.go

@@ -265,9 +265,6 @@ type ProviderConfig struct {
 	// @Title zh-CN 额外支持的ai能力
 	// @Description zh-CN 开放的ai能力和urlpath映射，例如： {"openai/v1/chatcompletions": "/v1/chat/completions"}
 	capabilities map[string]string
-	// @Title zh-CN 是否开启透传
-	// @Description zh-CN 如果是插件不支持的API，是否透传请求, 默认为false
-	passthrough bool
 }
 
 func (c *ProviderConfig) GetId() string {
@@ -453,10 +450,6 @@ func (c *ProviderConfig) ReplaceByCustomSettings(body []byte) ([]byte, error) {
 	return ReplaceByCustomSettings(body, c.customSettings)
 }
 
-func (c *ProviderConfig) PassthroughUnsupportedAPI() bool {
-	return c.passthrough
-}
-
 func CreateProvider(pc ProviderConfig) (Provider, error) {
 	initializer, has := providerInitializers[pc.typ]
 	if !has {