Remove notes about updates only on paid plan for the digest

src/mail_templates/digest.ejs

@@ -53,11 +53,6 @@ Last successful backup: <%- info.finishedBackups[0].backupId || info.finishedBac
 This Cloudron did **not** backup successfully in the last week!
 <% } -%>
 
-<% if (!info.hasSubscription) { -%>
-
-*Keep your Cloudron automatically up-to-date and secure by upgrading to a paid plan at* <%= webadminUrl %>/#/settings
-<% } -%>
-
 Powered by https://cloudron.io
 
 Sent at: <%= new Date().toUTCString() %>
@@ -156,12 +151,6 @@ Sent at: <%= new Date().toUTCString() %>
     <% } %>
 
         <br/>
-
-    <% if (!info.hasSubscription) { %>
-        Keep your Cloudron automatically up-to-date and secure by upgrading to a <a href="<%= webadminUrl %>/#/settings">paid plan</a>.
-    <% } %>
-
-        <br/>
         <br/>
         <br/>