Remove Boxcar due service shutdown upstream (#1222)

KEYWORDS

@@ -3,7 +3,6 @@ Alerts
 Apprise API
 Automated Packet Reporting System
 AWS
-Boxcar
 BulkSMS
 BulkVS
 Burst SMS

README.md

@@ -60,7 +60,6 @@ The table below identifies the services this tool supports and some example serv
 | [Apprise API](https://github.com/caronc/apprise/wiki/Notify_apprise_api)  | apprise:// or apprises:// | (TCP) 80 or 443 | apprise://hostname/Token
 | [AWS SES](https://github.com/caronc/apprise/wiki/Notify_ses)  | ses://   | (TCP) 443   | ses://user@domain/AccessKeyID/AccessSecretKey/RegionName<br/>ses://user@domain/AccessKeyID/AccessSecretKey/RegionName/email1/email2/emailN
 | [Bark](https://github.com/caronc/apprise/wiki/Notify_bark)  | bark://   | (TCP) 80 or 443   | bark://hostname<br />bark://hostname/device_key<br />bark://hostname/device_key1/device_key2/device_keyN<br/>barks://hostname<br />barks://hostname/device_key<br />barks://hostname/device_key1/device_key2/device_keyN
-| [Boxcar](https://github.com/caronc/apprise/wiki/Notify_boxcar)  | boxcar://   | (TCP) 443   | boxcar://hostname<br />boxcar://hostname/@tag<br/>boxcar://hostname/device_token<br />boxcar://hostname/device_token1/device_token2/device_tokenN<br />boxcar://hostname/@tag/@tag2/device_token
 | [Chantify](https://github.com/caronc/apprise/wiki/Notify_chantify) | chantify://    | (TCP) 443    | chantify://token
 | [Discord](https://github.com/caronc/apprise/wiki/Notify_discord)  | discord://   | (TCP) 443   | discord://webhook_id/webhook_token<br />discord://avatar@webhook_id/webhook_token
 | [Emby](https://github.com/caronc/apprise/wiki/Notify_emby)  | emby:// or embys:// | (TCP) 8096 | emby://user@hostname/<br />emby://user:password@hostname