fix: Remove RpcEntryNotFound from ClioError

[emreariyurek]

Since rippled has its own error codes, all occurrences have been replaced except for PR2549, and the entry has also been removed entirely from Clio’s error enum. This modification follows the feedback provided in this comment: #2549 (comment)

Pending compatible libxrpl — temporarily on hold

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 81.86%. Comparing base (b534570) to head (b676fb6).

Files with missing lines	Patch %	Lines
src/rpc/handlers/VaultInfo.cpp	75.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2661      +/-   ##
===========================================
+ Coverage    81.82%   81.86%   +0.04%     
===========================================
  Files          380      380              
  Lines        14313    14313              
  Branches      7901     7901              
===========================================
+ Hits         11712    11718       +6     
+ Misses        1439     1432       -7     
- Partials      1162     1163       +1     

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[kuznetsss]

Looks good, thanks!
But why don't we have to change any tests? I think it would be good to add some tests (in this PR or create an issue and do it in a separate PR).

[godexsoft]

LGTM