revert: add brand_color variable for the email templates (#33421)"

This reverts commit 4ec70eb98b.

This commit introduced a new setting (`brand_color`) that does not appear to be set and is causing issues with account deletion and other parts of the courseware.

Reverting until we can understand the change better.

lms/templates/instructor/edx_ace/addbetatester/email/body.html

@@ -3,7 +3,6 @@
 {% load i18n %}
 {% load static %}
 {% block content %}
-{% with site_name='<a href="'|add:site_name|add:'" style="color: '|add:brand_color|add:';">'|safe|add:site_name|add:'</a>'|safe email_address='<a href="mailto:'|add:email_address|add:'" style="color: '|add:brand_color|add:';">'|safe|add:email_address|add:'</a>'|safe %}
 <table width="100%" align="left" border="0" cellpadding="0" cellspacing="0" role="presentation">
     <tr>
         <td>
@@ -68,5 +67,4 @@
         </td>
     </tr>
 </table>
-{% endwith %}
 {% endblock %}

lms/templates/instructor/edx_ace/allowedenroll/email/body.html

@@ -3,7 +3,6 @@
 {% load i18n %}
 {% load static %}
 {% block content %}
-{% with site_name='<a href="'|add:site_name|add:'" style="color: '|add:brand_color|add:';">'|safe|add:site_name|add:'</a>'|safe email_address='<a href="mailto:'|add:email_address|add:'" style="color: '|add:brand_color|add:';">'|safe|add:email_address|add:'</a>'|safe %}
 <table width="100%" align="left" border="0" cellpadding="0" cellspacing="0" role="presentation">
     <tr>
         <td>
@@ -82,5 +81,4 @@
         </td>
     </tr>
 </table>
-{% endwith %}
 {% endblock %}

lms/templates/instructor/edx_ace/allowedunenroll/email/body.html

@@ -3,7 +3,6 @@
 {% load i18n %}
 {% load static %}
 {% block content %}
-{% with site_name='<a href="'|add:site_name|add:'" style="color: '|add:brand_color|add:';">'|safe|add:site_name|add:'</a>'|safe email_address='<a href="mailto:'|add:email_address|add:'" style="color: '|add:brand_color|add:';">'|safe|add:email_address|add:'</a>'|safe %}
 <table width="100%" align="left" border="0" cellpadding="0" cellspacing="0" role="presentation">
     <tr>
         <td>
@@ -31,5 +30,4 @@
         </td>
     </tr>
 </table>
-{% endwith %}
 {% endblock %}

lms/templates/instructor/edx_ace/enrolledunenroll/email/body.html

@@ -3,7 +3,6 @@
 {% load i18n %}
 {% load static %}
 {% block content %}
-{% with site_name='<a href="'|add:site_name|add:'" style="color: '|add:brand_color|add:';">'|safe|add:site_name|add:'</a>'|safe %}
 <table width="100%" align="left" border="0" cellpadding="0" cellspacing="0" role="presentation">
     <tr>
         <td>
@@ -40,5 +39,4 @@
         </td>
     </tr>
 </table>
-{% endwith %}
 {% endblock %}

lms/templates/instructor/edx_ace/enrollenrolled/email/body.html

@@ -3,7 +3,6 @@
 {% load i18n %}
 {% load static %}
 {% block content %}
-{% with site_name='<a href="'|add:site_name|add:'" style="color: '|add:brand_color|add:';">'|safe|add:site_name|add:'</a>'|safe %}
 <table width="100%" align="left" border="0" cellpadding="0" cellspacing="0" role="presentation">
     <tr>
         <td>
@@ -38,5 +37,4 @@
         </td>
     </tr>
 </table>
-{% endwith %}
 {% endblock %}

lms/templates/instructor/edx_ace/removebetatester/email/body.html

@@ -3,7 +3,6 @@
 {% load i18n %}
 {% load static %}
 {% block content %}
-{% with site_name='<a href="'|add:site_name|add:'" style="color: '|add:brand_color|add:';">'|safe|add:site_name|add:'</a>'|safe email_address='<a href="mailto:'|add:email_address|add:'" style="color: '|add:brand_color|add:';">'|safe|add:email_address|add:'</a>'|safe %}
 <table width="100%" align="left" border="0" cellpadding="0" cellspacing="0" role="presentation">
     <tr>
         <td>
@@ -45,5 +44,4 @@
         </td>
     </tr>
 </table>
-{% endwith %}
 {% endblock %}