mongodb: Remove unused config

roles/mongodb/templates/mongod.conf.j2

@@ -1,23 +0,0 @@
-
-systemLog:
-  destination: file
-  logAppend: true
-  path: /var/log/mongodb/mongod.log
-
-storage:
-  dbPath: /srv/mongodb
-  journal:
-    enabled: true
-
-processManagement:
-  fork: true
-  pidFilePath: /var/run/mongodb/mongod.pid
-  timeZoneInfo: /usr/share/zoneinfo
-
-net:
-  port: 27017
-  bindIpAll: true
-  tls:
-    mode: requireTLS
-    certificateKeyFile: {{ tls_private }}/mongodb.pem
-    CAFile: {{ tls_certs }}/ca.crt