Description
Drop duplicate definition of $btn-close-focus-shadow: https://github.com/twbs/bootstrap/blob/2dc329dd3725d99f756b07a70db5b1cd7432bcea/scss/_variables.scss#L1694-L1696
Type of changes
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Enhancement (non-breaking change)
Checklist
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I have read the contributing guidelines -
My code follows the code style of the project (using npm run lint) - (N/A) My change introduces changes to the documentation
- (N/A) I have updated the documentation accordingly
- (N/A) I have added tests to cover my changes
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All new and existing tests passed