external/libtuv: Remove unnecessary index checking
external/libtuv: Remove unnecessary index checking

after hashing, result cannot be smaller than 0 or greater than CONFIG_MAX_TASKS.
so checking validation is not needed.

junmin-kim/TizenRT,Samsung/TizenRT,junmin-kim/TizenRT,Samsung/TizenRT,pillip8282/TizenRT,jeongchanKim/TizenRT,jeongarmy/TizenRT,jeongchanKim/TizenRT,davidfather/TizenRT,an4967/TizenRT,sunghan-chang/TizenRT,an4967/TizenRT,pillip8282/TizenRT,JeonginKim/TizenRT,jeongarmy/TizenRT,junmin-kim/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,pillip8282/TizenRT,jsdosa/TizenRT,chanijjani/TizenRT,jeongarmy/TizenRT,chanijjani/TizenRT,sunghan-chang/TizenRT,chanijjani/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,junmin-kim/TizenRT,sunghan-chang/TizenRT,chanijjani/TizenRT,Samsung/TizenRT,sunghan-chang/TizenRT,chanijjani/TizenRT,davidfather/TizenRT,jsdosa/TizenRT,JeonginKim/TizenRT,jsdosa/TizenRT,JeonginKim/TizenRT,jeongarmy/TizenRT,chanijjani/TizenRT,pillip8282/TizenRT,sunghan-chang/TizenRT,junmin-kim/TizenRT,an4967/TizenRT,Samsung/TizenRT,davidfather/TizenRT,chanijjani/TizenRT,JeonginKim/TizenRT,jeongarmy/TizenRT,jeongchanKim/TizenRT,an4967/TizenRT,pillip8282/TizenRT,jeongchanKim/TizenRT,an4967/TizenRT,pillip8282/TizenRT,jeongarmy/TizenRT,junmin-kim/TizenRT,davidfather/TizenRT,davidfather/TizenRT,Samsung/TizenRT,JeonginKim/TizenRT,davidfather/TizenRT,jeongchanKim/TizenRT,pillip8282/TizenRT,jsdosa/TizenRT,jeongarmy/TizenRT,Samsung/TizenRT,sunghan-chang/TizenRT,jsdosa/TizenRT,sunghan-chang/TizenRT,davidfather/TizenRT,JeonginKim/TizenRT,an4967/TizenRT,junmin-kim/TizenRT,an4967/TizenRT,Samsung/TizenRT