Cleanup deprecated methods #831

We need to remove some of the deprecated methods. Targeting version 2.0.0 is the best time to do so as it is a major change.
There are not many of them and all have replacement methods.

Deprecated since 08/01/2017
public static TokenRequest fromJSON(JsonObject json)

|----|
| replacement |

public static TokenDetails fromJsonElement(JsonObject json)

Deprecated since 30/10/2015
public static TokenDetails fromJSON(JsonObject json)

|----|
| replacement |

public static TokenDetails fromJson(String json)

Deprecated since 06/07/2022
public TokenDetails renew()

|----|
| replacement |

public void renewAuth(RenewAuthResult result)

Deprecated since 03/02/2022
public ChannelCipher getCipher()

|----|
| replacement |

public synchronized ChannelCipherSet getCipherSet()

Deprecated since 01/11/2019
public static ChannelOptions fromCipherKey(byte[ ] key)

|----|
| replacement |

public static ChannelOptions withCipherKey(byte[ ] key)

Deprecated since 01/11/2019
public static ChannelOptions fromCipherKey(String base64Key)

|----|
| replacement |

public static ChannelOptions withCipherKey(String base64Key)

Deprecated since 03/02/2022
public interface ChannelCipher

|----|
| replacement |

public interface ChannelCipherSet

Deprecated since 16/01/2017
public void emit(ConnectionState state, ConnectionStateChange stateChange)

Deprecated since 16/01/2017
public void on(ConnectionState state, ConnectionStateListener listener)

Deprecated since 16/01/2017
public void once(ConnectionState state, ConnectionStateListener listener)

Deprecated since 16/01/2017
public TokenDetails authorise(TokenParams params, AuthOptions options)

|----|
| replacement |

public TokenDetails authorize(TokenParams params, AuthOptions options)

Deprecated since 27/10/2020
public boolean fallbackHostsUseDefault

Tests:
Deprecated since 01/11/2019
public void channel_options_from_cipher_key()

┆Issue is synchronized with this Jira Task by Unito