reuse existing range comparators in the zset (#8714)
reuse existing range comparators in the zset (#8714)

There are 2 common range comparators for skiplist: zslValueGteMin and
zslValueLteMax, but they're not being reused in zslDeleteRangeByScore

This is a small change to make code cleaner.
JackieXie168/redis,JackieXie168/redis,JackieXie168/redis,JackieXie168/redis