Remove suprious ()

Author: phillmac

src/lib/orbitdb-api.js

@@ -145,7 +145,7 @@ class OrbitdbAPI extends Express {
         this.get('/db/:dbname/value',  asyncMiddleware( async (req, res, next) => {
             let db, val
             db = await dbm.get(req.params.dbname)
-            val = await db.value()
+            val = await db.value
             return res.json(val)
         }));