docs: Remove throttler in upgrading doc
Updated the `Upgrading.md` document to ensure users remove the Clear
Containers throttler package to avoid conflicts with the Kata Container
equivalent.
Fixes
@@ -89,14 +89,14 @@ Kata Containers configuration.
### Fedora
```
-$ sudo -E dnf remove cc-runtime\* cc-proxy\* cc-shim\* linux-container clear-containers-image qemu-lite
+$ sudo -E dnf remove cc-runtime\* cc-proxy\* cc-shim\* linux-container clear-containers-image qemu-lite cc-ksm-throttler
$ sudo rm /etc/yum.repos.d/home:clearcontainers:clear-containers-3.repo
```
### Ubuntu
```
-$ sudo apt-get purge cc-runtime\* cc-proxy\* cc-shim\* linux-container clear-containers-image qemu-lite
+$ sudo apt-get purge cc-runtime\* cc-proxy\* cc-shim\* linux-container clear-containers-image qemu-lite cc-ksm-throttler
$ sudo rm /etc/apt/sources.list.d/clear-containers.list
```
