chore: remove unused parameter handlers (#10640)
chore: remove unused parameter handlers (#10640)

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If I'm not wrong, the parameter `handlers` seems to be useless here since it hasn't been called in the whole project.
## Description

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Remove useless parameter `handlers`
## Related Issues

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  Link to the issue that is fixed by this PR (if there is one)
  e.g. Fixes #1234, Addresses #1234, Related to #1234, etc.
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gatsbyjs/gatsby,ChristopherBiscardi/gatsby,ChristopherBiscardi/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby