Removed references to adding an extra disk from the Talos VM in TrueN…

…AS SCALE guide. (#29328)

**Description**
Removed all references to adding an extra disk from the Talos VM in
TrueNAS SCALE guide.

⚒️ Fixes  # 

**⚙️ Type of change**

- [ ] ⚙️ Feature/App addition
- [ ] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code

**🧪 How Has This Been Tested?**
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**📃 Notes:**
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**✔️ Checklist:**

- [ ] ⚖️ My code follows the style guidelines of this project
- [ ] 👀 I have performed a self-review of my own code
- [ ] #️⃣ I have commented my code, particularly in hard-to-understand
areas
- [x] 📄 I have made corresponding changes to the documentation
- [ ] ⚠️ My changes generate no new warnings
- [ ] 🧪 I have added tests to this description that prove my fix is
effective or that my feature works
- [ ] ⬆️ I increased versions for any altered app according to semantic
versioning
- [ ] I made sure the title starts with `feat(chart-name):`,
`fix(chart-name):` or `chore(chart-name):`

**➕ App addition**

If this PR is an app addition please make sure you have done the
following.

- [ ] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

---

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---------

Signed-off-by: Arne Klein <[email protected]>

website/src/content/docs/clustertool/virtual-machines/truenas-scale.mdx

@@ -124,7 +124,7 @@ Go back to the "preparation" section and make sure the IP you are trying to move
 
   3. Click the `Add Zvol` button on the top-right
 
-  4. You will be presented with a pane of potential options. Leave all of these as default except for `Zvol name` (call it something recognizable like `Talos Zvol 1`), `Size for this zvol` (set to between `256GiB` and `512GiB`), `Force size` (check this option), `Sparse` (check this option) and `Block size` (change to `128 KiB`)
+  4. You will be presented with a pane of potential options. Leave all of these as default except for `Zvol name` (call it something recognizable like `Talos zvol`), `Size for this zvol` (set to between `256GiB` and `512GiB`), `Force size` (check this option), `Sparse` (check this option) and `Block size` (change to `128 KiB`)
 
   5. We do **not** recommend to encrypt the dataset
 
@@ -221,42 +221,6 @@ If you followed this guide correctly, the options shown should look similar to t
 
 ![VM Confirm](./img/vm_confirm.png)
 
-### Attaching Extra Disk
-
-:::note
-
-You can skip this step if you don't have multiple disks configured for usage with Talos
-
-Please be warned, we do NOT actively provide support for multi-disk setups and this *will* require modifications to the default CSI setup
-
-:::
-
-Now that we have created the Talos VM, we need to attach the second Zvol we created earlier to it.
-
-<Steps>
-
-  1. Select/Expand the VM
-
-  2. Select the `Devices` button
-
-  3. Select the `Add` button in the top-right
-
-  4. Change `Type` to `Disk` and click into the `Search` box under `Zvol`. It should show the two Zvols you created earlier, select the second. In the below example, this would be "Talos zvol 2"
-
-  5. Change `Mode` to `VirtIO` and `Device Order` to `1002`. Leave all other options as default.
-
-</Steps>
-
-If you followed this correctly, the options shown should look similar to the screenshot below. Make sure everything is correct and then click on `Save` to finish the VM setup. Alternatively, follow the instructions [here](https://www.truenas.com/docs/scale/scaletutorials/virtualization/addmanagevmdevicesscale/#add-a-disk-device-type).
-
-:::note
-
-Under the `Order` section of the table, there should be two disks. You want Zvol1 from earlier to be a *lower* order number than Zvol2. If this is not done by default, change the `Device Order` numbering so that your first Zvol comes before the second
-
-:::
-
-![VM Disks 2](./img/vm_disks2.png)
-
 ## Fixed DHCP Lease
 
 Below you can find 2 examples on how to set a fixed DHCP Lease for UniFi and Fritzbox hardware.