This changes the Pop method to assign the zero value before reducing slice size. Doing so ensures the backing array does not reference removed item values.
* core, eth: for types with accurate size calcs, return uint64, not float * core/types: proper tx size tests * core/types: extend tx size test with decoded sizes, fix error * core/txpool: fix linter Co-authored-by: Martin Holst Swende <martin@swende.se>