Wizard - WizardBody is no longer omitable via WizardStep body prop

[thatblindgeye]

Follow up to breaking change PR patternfly/patternfly-react#10637

Previously one could omit the WizardBody component by passing body={null} to WizardStep. This is no longer the case. We shoudl remove any instances as part of this codemod if possible.

Required actions:

1. Build codemod
2. Build test
3. Update readme with description & example