Remove unused ktlint plugin dependency

[AlvaroBrey]

No description provided.

[github-actions]

SpotBugs (new)

Warning Type	Number
Bad practice Warnings	10
Correctness Warnings	35
Internationalization Warnings	6
Malicious code vulnerability Warnings	43
Multithreaded correctness Warnings	3
Performance Warnings	12
Security Warnings	1
Dodgy code Warnings	31
Total	141

SpotBugs (master)

Warning Type	Number
Bad practice Warnings	10
Correctness Warnings	35
Internationalization Warnings	6
Malicious code vulnerability Warnings	43
Multithreaded correctness Warnings	3
Performance Warnings	12
Security Warnings	1
Dodgy code Warnings	31
Total	141

[codecov]

Codecov Report

Merging #1054 (480f442) into master (c683b85) will decrease coverage by 0.03%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1054      +/-   ##
==========================================
- Coverage   49.35%   49.32%   -0.03%     
==========================================
  Files         179      179              
  Lines        6739     6739              
  Branches      895      895              
==========================================
- Hits         3326     3324       -2     
- Misses       2945     2946       +1     
- Partials      468      469       +1     

Impacted Files	Coverage Δ
...wncloud/android/lib/resources/files/FileUtils.java	71.42% <0.00%> (-14.29%)	⬇️