chore(repo): prune dead code and duplicate abstractions (#3413)

fluxer_api/src/api/Config.ts

@@ -3,6 +3,7 @@
 import type {APIConfig, BlueskyOAuthConfig, TrustedCallerConfig} from '@app/api/config/APIConfig';
 import {DonationRateLimitConfigs} from '@app/api/rate_limit_configs/DonationRateLimitConfig';
 import {parseIpBanEntry} from '@app/api/utils/IpRangeUtils';
+import {trimTrailingSlash} from '@app/api/utils/UrlUtils';
 import type {WorkerTaskName} from '@app/api/worker/WorkerLaneConfig';
 import type {MasterConfig} from '@fluxer/config/src/MasterConfig';
 import {smtpTlsModeFromSecure} from '@fluxer/constants/src/SmtpConstants';
@@ -17,10 +18,6 @@ function extractHostname(url: string): string {
 	}
 }
 
-function trimTrailingSlash(url: string): string {
-	return url.replace(/\/+$/u, '');
-}
-
 function resolveEmailAppBaseUrl(master: MasterConfig): string {
 	const configuredAppBaseUrl = master.integrations.email.app_base_url.trim();
 	if (!configuredAppBaseUrl) return trimTrailingSlash(master.endpoints.app);