[REF-3568][REF-3569]Remove deprecations

[ElijahAhianyo]

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Please delete options that are not relevant.

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[ElijahAhianyo]

CI needs reflex-dev/reflex-web#874 to pass for reflex-web

[linear]

REF-3568 Remove deprecated underscore prop handling

REF-3569 Remove other deprecated features that are promised to be removed in 0.6.0