[InputAutocomplete] unsafe use propTypes

[dmitrymalakhov]

when initializing a component InputAutocomplete

const keysInputPropTypes = Object.keys(TextField.propTypes);

in production may use transform-react-remove-prop-types babel plugin, which erase PropTypes and this code will be throw error "Uncaught TypeError: Cannot convert undefined or null to object"

I understand that at the moment this issue is not very relevant but you should pay attention to it.