Revert "[v9.5.x] [feat] docs; update admonition syntax" (#68989)

Revert "[v9.5.x] [feat] docs; update admonition syntax (#68856)"

This reverts commit 08ea5c94c6.

I believe that because of automatic conflict resolution, this backport PR contained a number of extra changes that were not part of the update to use admonition syntax.

I'm first going to revert this PR to prevent the confusing behavior in PRs like #68832.

If we still want admonition changes backported, we can open a new PR which I would like to be a reviewer on to double check.

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

docs/sources/developers/http_api/admin.md

@@ -192,9 +192,7 @@ Content-Type: application/json
 
 `PUT /api/admin/settings`
 
-{{% admonition type="note" %}}
-Available in Grafana Enterprise v8.0+.
-{{% /admonition %}}
+> **Note:** Available in Grafana Enterprise v8.0+.
 
 Updates / removes and reloads database settings. You must provide either `updates`, `removals` or both.
 
@@ -473,9 +471,7 @@ Content-Type: application/json
 
 `POST /api/admin/pause-all-alerts`
 
-{{% admonition type="note" %}}
-This API is relevant for the [legacy dashboard alerts](https://grafana.com/docs/grafana/v8.5/alerting/old-alerting/) only. For default alerting, use silences to stop alerts from being delivered.
-{{% /admonition %}}
+> **Note:** This API is relevant for the [legacy dashboard alerts](https://grafana.com/docs/grafana/v8.5/alerting/old-alerting/) only. For default alerting, use silences to stop alerts from being delivered.
 
 Only works with Basic Authentication (username and password). See [introduction](http://docs.grafana.org/http_api/admin/#admin-api) for an explanation.