fix(VRadio): remove duplicate classes, styles

[SonTT19]

Description

fixes #20005

Markup:

<template>
  <v-app>
    <v-container>
      <v-radio :class="['first', 'radio']" :style="{backgroundColor: 'red'}" :value="1" label="First" />
      <v-radio :class="['second', 'radio']" :value="2" label="Second" />
      <v-radio :value="3" class="third" label="Third" />
    </v-container>
  </v-app>
</template>

[johnleider]

This will break Defaults for class/style.

[SonTT19]

This will break Defaults for class/style.

@johnleider i tried to add these as default

and the result looks fine by me

Or do you mean something else?

[johnleider]

At a glance, it looks that it should cause defaults issues. I'll dig deeper into my theory.