[1.8] remove dagster/storage_kind from docs (#23416)

## Summary & Motivation

Per [this
discussion](https://github.com/dagster-io/internal/discussions/10821),
we decided we weren't ready to commit this functionality, so walking
this back.

## How I Tested These Changes

docs/content/concepts/metadata-tags/tags.mdx

@@ -62,8 +62,6 @@ def leads(): ...
 
 Other APIs that define assets can also accept tag arguments, such as <PyObject object="AssetSpec" />, <PyObject object="AssetOut" />, and the <PyObject object="graph_asset" decorator />.
 
-Dagster also provides a set of standard tags, such as `dagster/storage_kind`. These tags can be provided to assets in the same way as the example above. Refer to the [Standard asset tags reference](#standard-asset-tags) for more information.
-
 ### Jobs
 
 Adding tags to a job will attach them to every run executed by the job.
@@ -152,51 +150,6 @@ height={1406}
 
 ## References
 
-### Standard asset tags
-
-The following table lists the standard asset tag keys defined by Dagster. The `dagster` prefix indicates that the Dagster package takes responsibility for defining the meaning of these tags.
-
-<table
-  className="table"
-  style={{
-    width: "100%",
-  }}
->
-  <thead>
-    <tr>
-      <th
-        style={{
-          width: "25%",
-        }}
-      >
-        Tag
-      </th>
-      <th>Description</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <td>
-        <code>dagster/storage_kind</code>
-      </td>
-      <td>
-        The technology used to store the asset, e.g. <code>"snowflake"</code> or{" "}
-        <code>"s3"</code>.
-        <br />
-        <br />
-        If provided, the Dagster UI will show this value on the asset's node in the{" "}
-        <strong>Asset graph</strong>. Some values have corresponding icons - refer
-        to <a
-          href="https://github.com/dagster-io/dagster/blob/master/js_modules/dagster-ui/packages/ui-core/src/graph/OpTags.tsx"
-          target="new"
-        >
-          this page
-        </a> for a full list.
-      </td>
-    </tr>
-  </tbody>
-</table>
-
 ### System run tags
 
 The following table lists the tags Dagster will, on occasion, automatically add to runs.