revert: Rework text model logic and update dependencies

- Rewrite model name for relay text
- Simplify logic and move logging statements
- Remove a check that filtered out models by model-mapping
- Remove abilities for the model mapping
- Lower numeric tolerance for test files

relay/controller/text.go

@@ -29,16 +29,9 @@ func RelayTextHelper(c *gin.Context) *model.ErrorWithStatusCode {
 	meta.IsStream = textRequest.Stream
 
 	// map model name
-	var (
-		originRequestModel = textRequest.Model
-		isModelMapped      bool
-	)
+	var isModelMapped bool
 	meta.OriginModelName = textRequest.Model
 	textRequest.Model, isModelMapped = util.GetMappedModelName(textRequest.Model, meta.ModelMapping)
-	if isModelMapped {
-		logger.Info(c.Request.Context(), fmt.Sprintf("rewrite model name from %s to %s", originRequestModel, textRequest.Model))
-	}
-
 	meta.ActualModelName = textRequest.Model
 	// get model ratio & group ratio
 	modelRatio := common.GetModelRatio(textRequest.Model)