Added profiler deletion functionality and profile existence check

[Akkii4]

This commit modifies the removeProfile function in the SBT contract to add a check for the existence of the profile before removing it, to avoid caller's further gas consumption for non-existing profile. Additionally, the function now removes the _profiler address from the profiles list for _soul.

[jamesbachini]

Added in the update with the exception of the for loop as I wasn't sure if this would create an attack vector for a DOS attack if this loop got too big. Thank you