Remove Wizard from docs

The Raiden Wizard is not maintained anymore, so we should not mention it
in the docs.

README.md

@@ -50,7 +50,6 @@ If you haven't used Raiden before, you can
 ### Use Raiden
 
 If you want to use Raiden:
-* Install Raiden easily with the [Raiden Wizard](https://raiden-network.readthedocs.io/en/stable/installation/quick-start)
 * Read [all installation options](https://raiden-network.readthedocs.io/en/stable/overview_and_guide.html#installation) for Raiden
 * Read the updated [WebUI tutorial](https://raiden-network.readthedocs.io/en/stable/the-raiden-web-interface/the-raiden-web-interface.html) to quickly get started doing payments
 * Read the thorough guide to [get started with the Raiden API](https://raiden-network.readthedocs.io/en/stable/raiden-api-1/api-tutorial)

docs/manual-udc-deposit.rst

@@ -6,8 +6,7 @@ Manually depositing tokens to pay the services
 ==============================================
 
 To pay the services, you have to lock some of your Raiden tokens in the ``UserDeposit`` contract.
-Normally the Raiden Wizard or some other auxilliary scripts would do the contract interaction for you.
-In this section, we will briefly explain how it can be done manually so you are able to use Raiden without them.
+In this section, we will briefly explain how it can be done manually so you are able to use Raiden.
 
 All services that are registered in the service registry of a given network will use one shared instance of ``UserDeposit``.
 You can obtain the address of the contract from
@@ -52,4 +51,4 @@ on the RDN (or SVT) token contract, to allow the ``UserDeposit`` contract to mov
 
     deposit(0x3040435D7F1012e861f0B0989422a47D1825F120, 10000000000000000000)
 
-on the ``UserDeposit`` contract.
+on the ``UserDeposit`` contract.

docs/overview_and_guide.rst

@@ -8,32 +8,12 @@ Installation
 
 To install Raiden you can either:
 
-    * :ref:`Use the Raiden Wizard (Quick Start) <wizard_overview>`
     * :ref:`Download a self-contained application bundle from the GitHub release page  or, on macOS, use homebrew <installation_github>`
     * :ref:`Use pip<installation_pip>`
     * :ref:`Run a raiden docker image<installation_docker>`
 
 Below we will give details on how to use the self-contained application bundles on different platforms, as well as the other installation methods.
 
-Installation via Raiden Wizard
-******************************
-
-If you are new to Raiden or just want to use it without caring too much for the technical details, we recommend the Raiden Wizard to get started.
-It will help you to install Raiden and to acquire all necessary tokens for running it on the Ethereum mainnet.
-
-.. toctree::
-  :maxdepth: 1
-
-  installation/quick-start/README
-
-If you want to try out Raiden with test tokens on a testnet before running it on mainnet,
-you can use the Görli Wizard for installing Raiden and receiving tokens:
-
-.. toctree::
-  :maxdepth: 1
-
-  installation/quick-start-goerli/quick-start-on-goerli-testnet
-
 .. _installation_github:
 
 Installation from GitHub