Revert "[Attributor] Teach AAPointerInfo to look into aggregates" This reverts commit 844f6c5d03d58e7ac0c6b838e4a7834ac575ab9b and 4ed0a88cd8a77370073feb270d77a9e8b27bd68c as they broke the buildbots that run openmp/libomptarget/test/offloading/bug49021.cpp.