Moved the CURRENCY_REQUIRED validator back from the "accounting.forms" module to the "accounting.journal_entry.forms.currency" module. It is not shared with other module anymore.

src/accounting/forms.py

@@ -19,16 +19,11 @@
 """
 from flask_wtf import FlaskForm
 from wtforms import StringField, ValidationError
-from wtforms.validators import DataRequired
 
 from accounting import db
 from accounting.locale import lazy_gettext
 from accounting.models import Currency
 
-CURRENCY_REQUIRED: DataRequired = DataRequired(
-    lazy_gettext("Please select the currency."))
-"""The validator to check if the currency code is empty."""
-
 
 class CurrencyExists:
     """The validator to check if the account exists."""