Remove entries from .env file.

.env.example

@@ -188,36 +188,11 @@ MAILERSEND_API_KEY=
 # Firefly III can send you the following messages.
 SEND_ERROR_MESSAGE=true
 
-# Set this value to true if you want to set the location of certain things, like transactions.
-# Since this involves an external service, it's optional and disabled by default.
-ENABLE_EXTERNAL_MAP=false
-
-#
-# Enable or disable exchange rate conversion.
-#
-ENABLE_EXCHANGE_RATES=false
-
-# Set this value to true if you want Firefly III to download currency exchange rates
-# from the internet. These rates are hosted by the creator of Firefly III inside
-# an Azure Storage Container.
-# Not all currencies may be available. Rates may be wrong.
-ENABLE_EXTERNAL_RATES=false
-
 # The map will default to this location:
 MAP_DEFAULT_LAT=51.983333
 MAP_DEFAULT_LONG=5.916667
 MAP_DEFAULT_ZOOM=6
 
-#
-# Some objects have room for an URL, like transactions and webhooks.
-# By default, the following protocols are allowed:
-# http, https, ftp, ftps, mailto
-#
-# To change this, set your preferred comma separated set below.
-# Be sure to include http, https and other default ones if you need to.
-#
-VALID_URL_PROTOCOLS=
-
 #
 # Firefly III authentication settings
 #
@@ -272,11 +247,6 @@ DISABLE_CSP_HEADER=false
 TRACKER_SITE_ID=
 TRACKER_URL=
 
-#
-# Firefly III supports webhooks. These are security sensitive and must be enabled manually first.
-#
-ALLOW_WEBHOOKS=false
-
 #
 # The static cron job token can be useful when you use Docker and wish to manage cron jobs.
 # 1. Set this token to any 32-character value (this is important!).
@@ -310,13 +280,6 @@ PUSHER_ID=
 DEMO_USERNAME=
 DEMO_PASSWORD=
 
-#
-# Disable or enable the running balance column data.
-# If you enable this, please also run "php artisan firefly-iii:correct-database"
-# This will take some time the first run.
-#
-USE_RUNNING_BALANCE=false
-
 #
 # The v2 layout is very experimental. If it breaks you get to keep both parts.
 # Be wary of data loss.