offercoaching form works

rowers/models.py

@@ -3201,23 +3201,6 @@ class AccountRowerForm(ModelForm):
         if self.instance.rowerplan != 'coach':
             self.fields.pop('offercoaching')
 
-    def clean_email(self):
-        email = self.cleaned_data.get('email')
-
-        try:
-            validate_email(email)
-        except ValidationError:
-            raise forms.ValidationError(
-                'Please enter a valid email address')
-            
-        try:
-            match = User.objects.get(email__iexact=email)
-            if self.instance.user == match:
-                return email
-        except User.DoesNotExist:
-            return email
-
-        raise forms.ValidationError('This email address is not allowed')