Fix errors checking if local template directory exists.

group_vars/all/main.yml

@@ -144,7 +144,6 @@ apt_initial_install_stretch:
   - iputils-ping
   - apt-utils
   - aptitude
-  - apt-transport-https
   - zip
   - unzip
   - bzip2
@@ -257,7 +256,6 @@ apt_initial_install_buster:
   - iputils-ping
   - apt-utils
   - aptitude
-  - apt-transport-https
   - zip
   - unzip
   - bzip2
@@ -826,6 +824,10 @@ git_mailserver_repositories:
     repo: https://git.oopen.de/install/php
     dest: /usr/local/src/php
 
+  - name: mysql
+    repo: https://git.oopen.de/install/mysql
+    dest: /usr/local/src/mysql
+
   - name: mailsystem
     repo: https://git.oopen.de/install/mailsystem
     dest: /usr/local/src/mailsystem