Remove unused leftovers from JedisSharding

[uglide]

Continuation of #4311

[github-actions]

Test Results

   281 files  ±0     281 suites  ±0   11m 31s ⏱️ -21s
10 197 tests ±0  10 143 ✅ ±0  54 💤 ±0  0 ❌ ±0 
 2 712 runs  ±0   2 712 ✅ ±0   0 💤 ±0  0 ❌ ±0 

Results for commit bd46c4a. ± Comparison against base commit c18881e.

♻️ This comment has been updated with latest results.

[uglide]

@ggivo I don't think it's a breaking change, since the files are internal and not used extrernaly.

[ggivo]

@uglide
What do you mean by not used externaly?
They are marked @deprecated but are public and not documented as internal in comments or annotated with @internal.

[uglide]

@ggivo see https://github.com/redis/jedis/pull/4311/files#diff-a1c95bbe6e3dc70afb41f29448973d7f61021891667a064b67d5bbc2603748b3L32-L35
This PR removes leftovers that were overseen during the JedisSharding removal. Hashing was used only for JedisSharding and is unlikely to be used without it.