delete some code

mvc/models/models_pages/posts.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"fmt"
 	"html/template"
-	"io"
 	"main/tools"
 	"os"
 	"path/filepath"
@@ -30,13 +29,7 @@ func LoadPosts(dir string) (Posts, error) {
 		}
 		if !f.IsDir() && strings.HasSuffix(f.Name(), ".md") {
 
-			file, err := os.Open(path)
-			if err != nil {
-				return err
-			}
-			defer file.Close()
-
-			md, err := io.ReadAll(file)
+			md, err := os.ReadFile(path)
 			if err != nil {
 				return err
 			}