build(deps): remove native code + unused pods

[brainbicycle]

This PR resolves PHIRE-139

Description

Removes some old pods that are no longer necessary:

• AROAuth previously used for twitter auth, not used in a long time
• AFNetworking, we are only using some of the subspecs, removed the rest
• EDColor, was used for some convenience methods but we have an extension that does the same thing
• ARGenericTableViewController, was only used in old admin menu

Removes some old native code:

• Old admin menu, this has some cool tools but hasn't been given attention in a long time and most are broken, getting rid of let's us get rid of a fair bit of code

Cleans up unused imports:

• Went through a bunch of files checking for unused imports, there were quite a few

Follow-ups

• Remove more code!

PR Checklist

• I have tested my changes on iOS and Android.
• I hid my changes behind a feature flag, or they don't need one.
• I have included screenshots or videos, or I have not changed the UI.
• I have added tests, or my changes don't require any.
• I added an app state migration, or my changes do not require one.
• I have documented any follow-up work that this PR will require, or it does not require any.
• I have added a changelog entry below, or my changes do not require one.

To the reviewers 👀

• I would like at least one of the reviewers to run this PR on the simulator or device.

Changelog updates

Changelog updates

Cross-platform user-facing changes

iOS user-facing changes

Android user-facing changes

Dev changes

• Remove unused code + native dependencies - Brian

Need help with something? Have a look at our docs, or get in touch with us.

[ArtsyOpenSource]

This PR contains the following changes:

• Dev changes (Remove unused code + native dependencies - Brian)

Generated by 🚫 dangerJS against 63437df

[damassi]

Thank you for following up on this 👍

[brainbicycle]

exposing a convenience method we already had to get rid of EDColor which we were using for same purpose

[brainbicycle]

most of the header file deletions / noise is just removing and check to see if it still compiles.

[gkartalis]

on fire! 🧹🧹🧹🧹

[MounirDhahri]

LGTM - thanks Brian