revert 484e023c0

packages/backend/src/server/api/endpoints/users/search-by-username-and-host.ts

@@ -28,10 +28,7 @@ export const paramDef = {
 		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
 		detail: { type: 'boolean', default: true },
 	},
-	anyOf: [
-		{ required: ['username'] },
-		{ required: ['host'] },
-	],
+	required: [],
 } as const;
 
 // TODO: avatar,bannerをJOINしたいけどエラーになる