Adjust call to decode() for parameter change

[paul1r]

This commit removed an unused parameter from variableLengthList.decode(i).

When the underlying pull request was merged, there was a change needed to compressed.go to react to the parameter change. The testing before this fix shows:

go test ./...
# github.com/axiomhq/hyperloglog [github.com/axiomhq/hyperloglog.test]
./compressed.go:113:24: too many arguments in call to v.b.decode
	have (int, uint32)
	want (int)
FAIL	github.com/axiomhq/hyperloglog [build failed]
FAIL

After applying this fix:

go test ./... -count=1
ok  	github.com/axiomhq/hyperloglog	8.671s

[lukasmalkmus]

My bad! Thanks for the fix.

This repository is in need for getting an updated CI :/

[mgartner]

Thanks for fixing this and sorry I missed it!