Revert "search all user by email at forgotten password"

This reverts commit 406e2ff03a.

src/Yavsc.Org/Controllers/Accounting/AccountController.cs

@@ -867,7 +867,7 @@ IHtmlLocalizerFactory htmlLocalizerFactory,
                 // Username should not contain any '@'
                 if (model.LoginOrEmail.Contains('@'))
                 {
-                    user = await _dbContext.Users.FirstOrDefaultAsync(u => u.Email == model.LoginOrEmail); // || u.UserName == (model.LoginOrEmail);
+                    user = await _userManager.FindByEmailAsync(model.LoginOrEmail);
                 }
                 else
                 {