changed in DistortableImage.Keymapper- by removing the function

[shivarajloni]

Fixes #765 (<=== Add issue number here)

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[shivarajloni]

@sashadev-sky please review it! and merge it with tag, hacktoberfest and hacktoberfest-accepted

thank you!

[shivarajloni]

@SMAKSS please add the tags- hacktoberfest and hacktoberfest-accepted

thank you

[sashadev-sky]

@shivarajloni great job here!! Merging now, thanks!

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