Disable appservice-irc log files

appservice-irc doesn't have permission to create files in its project
directory and the intention is to log to the console, anyway. By
commenting out the file names, appservice-irc won't attempt to open the
files.

roles/matrix-bridge-appservice-irc/defaults/main.yml

@@ -427,10 +427,10 @@ matrix_appservice_irc_configuration_yaml: |
       # Level to log on console/logfile. One of error|warn|info|debug
       level: "debug"
       # The file location to log to. This is relative to the project directory.
-      logfile: "debug.log"
+      #logfile: "debug.log"
       # The file location to log errors to. This is relative to the project
       # directory.
-      errfile: "errors.log"
+      #errfile: "errors.log"
       # Whether to log to the console or not.
       toConsole: true
       # The max number of files to keep. Files will be overwritten eventually due