[v10.0.x] Remove plugins (#75584)

* Fix all links to "Sign a plugin" pages

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

* [publish_dashboards]

* Fix metadata links

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

* [publish-technical-documentation-next] Publish from grafana/agent:main/docs/sources

* Fix data-frames redirect

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

* add collapse shortcode (#15422)

* Add note about missing rewrites

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

* Fix all data-frames links

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

* Fix links to "plugins"

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

* Fix links to angular-react

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

* Fix "plugin-sdk-go" links

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

* Fix backend links

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

* Fix "Add query editor help" links

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

* Fix some remaining links

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

* Fix some stray links

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

* [publish_plugins]

* Add missing redirects and fix a couple more links

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

* Use partial URLs to appease `doc-validator` for now

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

---------

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

docs/sources/datasources/postgres/_index.md

@@ -232,7 +232,7 @@ The resulting table panel:
 
 If you set Format as to _Time series_, then the query must have a column named time that returns either a SQL datetime or any numeric datatype representing Unix epoch in seconds. In addition, result sets of time series queries must be sorted by time for panels to properly visualize the result.
 
-A time series query result is returned in a [wide data frame format][data-frames-wide-format]. Any column except time or of type string transforms into value fields in the data frame query result. Any string column transforms into field labels in the data frame query result.
+A time series query result is returned in a [wide data frame format](/developers/plugin-tools/introduction/data-frames#wide-format). Any column except time or of type string transforms into value fields in the data frame query result. Any string column transforms into field labels in the data frame query result.
 
 > For backward compatibility, there's an exception to the above rule for queries that return three columns including a string column named metric. Instead of transforming the metric column into field labels, it becomes the field name, and then the series name is formatted as the value of the metric column. See the example with the metric column below.
 
@@ -492,9 +492,6 @@ conditions.
 [configure-standard-options-display-name]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/panels-visualizations/configure-standard-options#display-name"
 [configure-standard-options-display-name]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/panels-visualizations/configure-standard-options#display-name"
 
-[data-frames-wide-format]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/developers/plugins/introduction-to-plugin-development/data-frames#wide-format"
-[data-frames-wide-format]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/developers/plugins/introduction-to-plugin-development/data-frames#wide-format"
-
 [data-source-management]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/administration/data-source-management"
 [data-source-management]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/administration/data-source-management"