docs: update skip plugins section of cli-service (#5927)

Simplify language, omit unnecessary use case example to better align with tone of other feature descriptions

Author: Mark Szymanski

docs/guide/cli-service.md

@@ -126,7 +126,7 @@ npx vue-cli-service help [command]
 
 ## Skipping Plugins
 
-Sometimes, you may want to not use a certain CLI Plugin when running a command. For example you might want to build a version of your app that doesn't include the PWA plugin. You can do that by passing the name of the plugin to the `--skip-plugins` option.
+You can exclude specific plugins when running a command by passing the name of the plugin to the `--skip-plugins` option:
 
 ```bash
 npx vue-cli-service build --skip-plugins pwa