The custom rule no-empty-alt-text was updated in https://github.com/github/markdownlint-github/pull/88 to temporarily support flagging images with missing alt attributes since it wasn't already handled by the native markdownlint rule no-alt-text.
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https://github.com/DavidAnson/markdownlint/pull/993 introduced this missing alt attribute check natively to the no-alt-text rule. This change has shipped as part of markdownlint 0.33.0 which this library currently runs, so we should be able to get rid of this now-redundant check.
The custom rule
no-empty-alt-textwas updated in https://github.com/github/markdownlint-github/pull/88 to temporarily support flagging images with missing alt attributes since it wasn't already handled by the native markdownlint ruleno-alt-text.https://github.com/DavidAnson/markdownlint/pull/993 introduced this missing alt attribute check natively to the
no-alt-textrule. This change has shipped as part of markdownlint 0.33.0 which this library currently runs, so we should be able to get rid of this now-redundant check.