Remove implementation of FileSize validator

app/extensions/wtforms_extras/validators.py

@@ -1,14 +0,0 @@
-from wtforms.validators import ValidationError
-
-
-def FileSize(max_size_mb):
-    max_size_b = max_size_mb * 1024 * 1024
-
-    def file_length_check(form, field):
-        if len(field.data.read()) >= max_size_b:
-            raise ValidationError(
-                f'File size must be less or equal than {max_size_mb} MB'
-            )
-        field.data.seek(0)
-
-    return file_length_check

app/users/settings/forms.py

@@ -1,5 +1,5 @@
 from flask_wtf import FlaskForm
-from flask_wtf.file import FileField, FileRequired
+from flask_wtf.file import FileField, FileRequired, FileSize
 from wtforms import (
     PasswordField,
     SelectField,
@@ -16,7 +16,6 @@ from wtforms.validators import (
     Regexp
 )
 from app.models import User, UserSettingJobStatusMailNotificationLevel
-from app.extensions.wtforms_extras.validators import FileSize
 
 
 class UpdateAccountInformationForm(FlaskForm):
@@ -99,7 +98,7 @@ class UpdateProfileInformationForm(FlaskForm):
 
 
 class UpdateAvatarForm(FlaskForm):
-    avatar = FileField('File', validators=[FileRequired(), FileSize(2)])
+    avatar = FileField('File', validators=[FileRequired(), FileSize(2_000_000)])
     submit = SubmitField()
 
     def validate_avatar(self, field):