use DATAVERSE_SITEURL instead of _CT_ version #10756

The _CT_ version is not needed now that we have upgraded to
Payara 6.2024.6 in #10495 which included this fix:
payara/Payara#6550

doc/sphinx-guides/source/container/running/demo.rst

@@ -124,8 +124,6 @@ Some JVM options can be configured as environment variables. For example, you ca
 
 We are in the process of making more JVM options configurable as environment variables. Look for the term "MicroProfile Config" in under :doc:`/installation/config` in the Installation Guide to know if you can use them this way.
 
-Please note that for a few environment variables (the ones that start with ``%ct`` in :download:`microprofile-config.properties <../../../../../src/main/resources/META-INF/microprofile-config.properties>`), you have to prepend ``_CT_`` to make, for example, ``_CT_DATAVERSE_SITEURL``. We are working on a fix for this in https://github.com/IQSS/dataverse/issues/10285.
-
 There is a final way to configure JVM options that we plan to deprecate once all JVM options have been converted to MicroProfile Config. Look for "magic trick" under "tunables" at :doc:`../app-image` for more information.
 
 Database Settings

docker/compose/demo/compose.yml

@@ -9,7 +9,7 @@ services:
     restart: on-failure
     user: payara
     environment:
-      _CT_DATAVERSE_SITEURL: "https://demo.example.org"
+      DATAVERSE_SITEURL: "https://demo.example.org"
       DATAVERSE_DB_HOST: postgres
       DATAVERSE_DB_PASSWORD: secret
       DATAVERSE_DB_USER: dataverse