remove offset

[WinstonDovlatov]

IMPORTANT: Please do not create a Pull Request without creating an issue first.

Before submitting (must do checklist)

• Did you read the contribution guide?
• Did you update the docs? We use Numpy format for all the methods and classes.
• Did you write any new necessary tests?
• Did you update the CHANGELOG?

Type of Change

• Examples / docs / tutorials / contributors update
• Bug fix (non-breaking change which fixes an issue)
• Improvement (non-breaking change which improves an existing feature)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Proposed Changes

Related Issue

#98

Closing issues

#98

[codecov-commenter]

Codecov Report

Merging #111 (356c4e8) into master (262fa68) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #111      +/-   ##
==========================================
- Coverage   88.04%   88.03%   -0.01%     
==========================================
  Files          55       55              
  Lines        2542     2541       -1     
==========================================
- Hits         2238     2237       -1     
  Misses        304      304              

Impacted Files	Coverage Δ
etna/transforms/statistics.py	98.80% <ø> (-0.02%)	⬇️

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[julia-shenshina]

🔥

[julia-shenshina]

Add closes #98 to Closing issues block in PR description; it allows to close the corresponding issue automatically with PR merge