Revert "fix: appropriate 404 handling for write API calls"

This reverts commit b6cce75d97.

src/routes/write/index.js

@@ -55,9 +55,4 @@ Write.reload = async (params) => {
 	});
 	winston.info(`[api] Adding ${pluginRouter.stack.length} route(s) to \`api/v3/plugins\``);
 	router.use('/api/v3/plugins', pluginRouter);
-
-	// 404 handling
-	router.use('/api/v3', (req, res) => {
-		helpers.formatApiResponse(404, res);
-	});
 };