Dropped support for func(http.Handler) http.Handler middleware

Signed-off-by: Vishal Rana <vr@labstack.com>

middleware/logger.go

@@ -1,35 +0,0 @@
-package middleware
-
-import (
-	"log"
-	"time"
-
-	"github.com/labstack/echo"
-	"github.com/labstack/gommon/color"
-)
-
-func Logger(h echo.HandlerFunc) echo.HandlerFunc {
-	return func(c *echo.Context) error {
-		start := time.Now()
-		if err := h(c); err != nil {
-			return err
-		}
-		end := time.Now()
-		col := color.Green
-		m := c.Request.Method
-		p := c.Request.URL.Path
-		n := c.Response.Status()
-
-		switch {
-		case n >= 500:
-			col = color.Red
-		case n >= 400:
-			col = color.Yellow
-		case n >= 300:
-			col = color.Cyan
-		}
-
-		log.Printf("%s %s %s %s", m, p, col(n), end.Sub(start))
-		return nil
-	}
-}