i have a samsung galaxy tab 2 rooted and when i open es file explorer and enable show hidden app there is an folder in dcim wich lead to tumbnails and inside thumbnails there is 2 file named thumbdata3--1967290299 and thumdata 3-1763508120 along with all image that was suposedly already got deleted.my question is can i delete thumbdata3--1967290299 and thumdata 3-1763508120 along with all image that was suposedly already got deleted because they take so much memory?will it become a problem for my android if i delete that?thankyou