Revert "add first purchase discount to courseware (#22058)"

This reverts commit 059b619794.

openedx/features/course_experience/utils.py

@@ -213,3 +213,30 @@ def get_resume_block(block):
         if resume_block:
             return resume_block
     return block
+
+
+def get_first_purchase_offer_banner_fragment(user, course):
+    if user and course:
+        discount_expiration_date = get_discount_expiration_date(user, course)
+        if (discount_expiration_date and
+                can_receive_discount(user=user, course=course, discount_expiration_date=discount_expiration_date)):
+            # Translator: xgettext:no-python-format
+            offer_message = _(u'{banner_open} Upgrade by {discount_expiration_date} and save {percentage}% '
+                              u'[{strikeout_price}]{span_close}{br}Discount will be automatically applied at checkout. '
+                              u'{a_open}Upgrade Now{a_close}{div_close}')
+            return Fragment(HTML(offer_message).format(
+                a_open=HTML(u'<a href="{upgrade_link}">').format(
+                    upgrade_link=verified_upgrade_deadline_link(user=user, course=course)
+                ),
+                a_close=HTML('</a>'),
+                br=HTML('<br>'),
+                banner_open=HTML(
+                    '<div class="first-purchase-offer-banner"><span class="first-purchase-offer-banner-bold">'
+                ),
+                discount_expiration_date=discount_expiration_date.strftime(u'%B %d'),
+                percentage=discount_percentage(),
+                span_close=HTML('</span>'),
+                div_close=HTML('</div>'),
+                strikeout_price=HTML(format_strikeout_price(user, course, check_for_discount=False)[0])
+            ))
+    return None