Material UI v5: remove Chip's default variant

Proprietary

Removes variant="default" from Chip. Ported from the MUI codemod v5.0.0/chip-variant-prop.

org.openrewrite.react.mui.v5.chip-variant-prop
mod run . --recipe=org.openrewrite.react.mui.v5.chip-variant-prop

Install it once from Recipe actions, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.