remove invalid comment from SkinVector::setupSkinUserCss

It seems to refer to pre-ResourceLoader situation (or at least
pre-skins.vector one). Originally added in 6df94d49, back in 2010.

Change-Id: I759fa99041db465ec6baff94b6b96a79b47438dd
Add a script to remove deleted files from storage

Bug: 47990
Change-Id: I2fcc2b2c3e92cd851c38f947de6756a982cf194d