Delete incorrectly capitalized server files

[knagaitsev]

• This is a bugfix
• This is a feature
• This is a code refactor
• This is a test update
• This is a docs update
• This is a metadata update

For Bugs and Features; did you add new tests?

Motivation / Use-Case

Deleted bad file capitalization introduced by #1904

Breaking Changes

Additional Info

[codecov]

Codecov Report

Merging #1931 into master will increase coverage by 0.96%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1931      +/-   ##
==========================================
+ Coverage   86.77%   87.74%   +0.96%     
==========================================
  Files          20       18       -2     
  Lines         862      832      -30     
  Branches      265      260       -5     
==========================================
- Hits          748      730      -18     
+ Misses         99       88      -11     
+ Partials       15       14       -1

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[alexander-akait]

@hiroppy please fix commit message before merge, because it can breaking automatically release using standard-version, here we have bad commit message

[knagaitsev]

@hiroppy please fix commit message before merge, because it can breaking automatically release using standard-version, here we have bad commit message

My apologies, I made the commits directly on GitHub, but I thought I followed the right format.

[hiroppy]

I'll be careful to check commit-messages before merging.