simplify config generation

conf/config.yaml

@@ -424,10 +424,10 @@ bridge:
 # Telegram config
 telegram:
     # Get your own API keys at https://my.telegram.org/apps
-    api_id: __TELEGRAM_API_ID__
-    api_hash: __TELEGRAM_API_HASH__
+    api_id: __APIID__
+    api_hash: __APIHASH__
     # (Optional) Create your own bot at https://t.me/BotFather
-    bot_token: __TELEGRAM_BOT_TOKEN__
+    bot_token: __BOTTOKEN__
 
     # Telethon connection options.
     connection:

scripts/_common.sh

@@ -21,10 +21,6 @@ write_bridge_config () {
 	verify_server_ssl_certificates="true"
 	matrix_server_supports_asmux="false"
 	log_filename="/var/log/$app/$app.log"
-	# TODO rename these settings
-	telegram_api_id="$apiid"
-	telegram_api_hash="$apihash"
-	telegram_bot_token="$bottoken"
 	log_level="error"
 	ynh_add_config --template="config.yaml" --destination="$mautrix_config_path"
 }