Avatar autogeneration fixed (#13233)

This mod fixes problem with initial avatar autogeneration and
avatar autogneration after deleting previous avatar.

Related: https://github.com/go-gitea/gitea/issues/13159
Fixes: 80a6b0f5bc
Author-Change-Id: IB#1105243

models/user.go

@@ -190,9 +190,6 @@ func (u *User) BeforeUpdate() {
 		if len(u.AvatarEmail) == 0 {
 			u.AvatarEmail = u.Email
 		}
-		if len(u.AvatarEmail) > 0 && u.Avatar == "" {
-			u.Avatar = base.HashEmail(u.AvatarEmail)
-		}
 	}
 
 	u.LowerName = strings.ToLower(u.Name)
@@ -822,7 +819,6 @@ func CreateUser(u *User) (err error) {
 
 	u.LowerName = strings.ToLower(u.Name)
 	u.AvatarEmail = u.Email
-	u.Avatar = base.HashEmail(u.AvatarEmail)
 	if u.Rands, err = GetUserSalt(); err != nil {
 		return err
 	}