chore: remove dev query param from GET /tasks API

Author: samarpan1738

middlewares/validators/tasks.js

@@ -149,7 +149,6 @@ const updateSelfTask = async (req, res, next) => {
 
 const getTasksValidator = async (req, res, next) => {
   const schema = joi.object().keys({
-    dev: joi.bool().optional().sensitive(),
     status: joi
       .string()
       .insensitive()