Add conditional org model email formatting

src/registrar/models/domain_request.py

@@ -954,7 +954,6 @@ class DomainRequest(TimeStampedModel):
                     "recipient": recipient,
                     "is_org_user": is_org_user,
                 }
-
             if custom_email_content:
                 context["custom_email_content"] = custom_email_content
             send_templated_email(

src/registrar/templates/emails/submission_confirmation.txt

@@ -12,10 +12,9 @@ STATUS: Submitted
 
 NEXT STEPS
 We’ll review your request. This review period can take 30 business days. Due to the volume of requests, the wait time is longer than usual. We appreciate your patience.  
-{% if has_organization_feature_flag %}
+{% if is_org_user %}
 During our review we’ll verify that your requested domain meets our naming requirements.
 {% else %}
-has feature flag: {{has_organization_feature_flag}}
 During our review, we’ll verify that:
 - Your organization is eligible for a .gov domain
 - You work at the organization and/or can make requests on its behalf