its the seal of insight tracker from realui's aura watch module at least for the paladin
for your rogue it probably is a similar buff
to disable tracking open up the realui options, go to aura watch and select bar groups there select paladin, click on the + sign next to auras and click once on group 2 which for paladins tracks seals and then disable it
for the rogue its similar you just will have to check whick aura group produces that icon, the tracked spells are listed in the auras tab on the right