When working on something else, I noticed we still had references to the Run-1/2 VELO clusters in LHCb.
@kreps confirmed to me that Boole uses a dedicated Run 1/2 build, so these are not needed in master.
I wasn't too sure how this dict is handled, exactly, so I guessed by just removing any references to these obsolete classes in there... but I also didn't see references to newer classes (for example the VPLightCluster)? @cattanem
