In contrast to oneOf and anyOf rendererer, allOf renderers do not need the `indexOfFittingSchema` because all schemas apply at once.
Thus, remove using mapStateToCombinatorRendererProps from mapStateToAllOfProps and, with this, the unnecessary calculation of the index.

Part of #2371

- Adapt algorithm to determine the fitting schema index for combinators to no longer use AJV
- New heuristic uses identifying properties that should match a const value in the schema
- Adapt MaterialOneOfRenderer.test.tsx to fit new heuristic
- Describe changes and add examples to migration guide
- Adapt some of the anyOf and oneOf examples to custom and new identification properties

#2371

In contrast to oneOf and anyOf rendererer, allOf renderers do not need the `indexOfFittingSchema` because all schemas apply at once.
Thus, remove using mapStateToCombinatorRendererProps from mapStateToAllOfProps and, with this, the unnecessary calculation of the index.

Part of #2371

- Adapt algorithm to determine the fitting schema index for combinators to no longer use AJV
- New heuristic uses identifying properties that should match a const value in the schema
- Adapt MaterialOneOfRenderer.test.tsx to fit new heuristic
- Describe changes and add examples to migration guide
- Adapt some of the anyOf and oneOf examples to custom and new identification properties

#2371

In contrast to oneOf and anyOf rendererer, allOf renderers do not need the `indexOfFittingSchema` because all schemas apply at once.
Thus, remove using mapStateToCombinatorRendererProps from mapStateToAllOfProps and, with this, the unnecessary calculation of the index.

Part of #2371