Revert "Make subdomain minimum length configurable via env var" (#23871)

Instead, reduce the subdomain minimum length to 1 char

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packages/twenty-front/src/modules/client-config/hooks/useClientConfig.ts

@@ -208,7 +208,6 @@ export const useClientConfig = (): UseClientConfigResult => {
         defaultSubdomain: clientConfig?.defaultSubdomain,
         frontDomain: clientConfig?.frontDomain,
         publicFunctionDomain: clientConfig?.publicFunctionDomain,
-        subdomainMinLength: clientConfig?.subdomainMinLength,
       });
       setCanManageFeatureFlags(clientConfig?.canManageFeatureFlags);
       setLabPublicFeatureFlags(clientConfig?.publicFeatureFlags);

packages/twenty-front/src/modules/client-config/types/ClientConfig.ts

@@ -25,7 +25,6 @@ export type ClientConfig = {
   canManageFeatureFlags: boolean;
   captcha: Captcha;
   defaultSubdomain?: string;
-  subdomainMinLength: number;
   frontDomain: string;
   publicFunctionDomain?: string | null;
   isAttachmentPreviewEnabled: boolean;