Revert "Add documentation regarding Bearer Token Authentication set up."

This reverts commit 71639da7113f058c0c12a09f13a6d265dc531785.

Reason for revert: After this fix I5fefcfd0, this documentation makes no sense anymore.

Change-Id: I84e5eb2994bf47334f9587f7c0953d21f1cd4933

src/main/resources/Documentation/config.md

diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index e256491..eab5fe6 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -49,16 +49,6 @@
 To manually trigger replication at runtime, see
 SSH command [start](cmd-start.md).
 
-Enabling Bearer Token Authentication
-------------------------------------
-
-If replicating over HTTP/HTTPS with Bearer Token Authentication, ensure
-the `pull-replication.jar` is copied into the `$GERRIT_SITE/lib`. The reason
-behind is that JGit does not support Bearer Token Authentication and therefore
-pull-replication plugin has implemented a temporal solution to support it,
-and it requires to be loaded in the main Gerrit class-loader, even if it is
-initialised as a plugin.
-
 File `@PLUGIN@.config`
 -------------------------