Remove var that doesn't align with the defaults

Author: quietsy

root/defaults/simplelogin.env

@@ -52,7 +52,7 @@ SUPPORT_NAME=Son from SimpleLogin
 
 # Max number emails user can generate for free plan
 # Set to 5 by default
-MAX_NB_EMAIL_FREE_PLAN=10000
+# MAX_NB_EMAIL_FREE_PLAN=5
 
 # Close registration. Avoid people accidentally creating new account on a self-hosted SimpleLogin
 # DISABLE_REGISTRATION=1