drop syslog

Close #9774

packages/backend/package.json

@@ -110,7 +110,6 @@
 		"strict-event-emitter-types": "2.0.0",
 		"stringz": "2.1.0",
 		"summaly": "2.7.0",
-		"syslog-pro": "git+https://github.com/misskey-dev/SyslogPro#0.2.9-misskey.2",
 		"systeminformation": "5.17.8",
 		"tinycolor2": "1.5.2",
 		"tmp": "0.2.1",
@@ -167,7 +166,6 @@
 		"@types/sharp": "0.31.1",
 		"@types/sinonjs__fake-timers": "8.1.2",
 		"@types/speakeasy": "2.0.7",
-		"@types/syslog-pro": "1.0.0",
 		"@types/tinycolor2": "1.4.3",
 		"@types/tmp": "0.2.3",
 		"@types/unzipper": "0.10.5",