Removes cap_accounts_data_len feature

[brooksprumo]

Problem

The cap_accounts_data_len feature cannot and will not ever be activated. The code has been removed, but before that, it would introduce potential non-determinism. For more information, please refer to #27029

Here's the original feature gate issue: #24135

Now all that remains is the feature itself, and can be safely removed.

PRs that removed code gated by this feature:

• Remove bank test_max_accounts_data_size_exceeded() #26772
• Remove accounts data size checks in blockstore_processor #26776
• Do not check accounts data size in InvokeContext #26773
• Removes cap-accounts-data-len bits when constructing a new Bank #34688
• Removes unnecessary feature activation when testing accounts data size #34701

Summary of Changes

Remove the cap_accounts_data_len feature

Feature Gate Issue: #24135

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.7%. Comparing base (6ee3bb9) to head (b79f15f).
Report is 23 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##           master   #35378    +/-   ##
========================================
  Coverage    81.7%    81.7%            
========================================
  Files         834      834            
  Lines      224299   224814   +515     
========================================
+ Hits       183361   183865   +504     
- Misses      40938    40949    +11     

[CriesofCarrots]

Lgtm. Could you please add to the PR description a link to the PR(s) that removed the code gated by this feature? I assume it's linked to the Feature Gate issue, but it is hard to tell which it might be.

[t-nelson]

r+ tyera's pr/issue linkage suggestions