Remove MultiRenderer

.changeset/cool-taxis-clap.md

@@ -0,0 +1,6 @@
+---
+"@khanacademy/perseus": major
+"@khanacademy/perseus-editor": major
+---
+
+Remove support for MultiRenderer

docs/architecture.md

@@ -55,17 +55,6 @@ with a short description and the main Perseus data type it accepts.
             article, but the scoring is not available outside of the renderer.
         </td>
     </tr>
-    <tr>
-        <td><code>MultiItemRenderer</code></td>
-        <td> <code>{ _multi: any }</code></td>
-        <td>
-            The `MultiItemRenderer` is a more advanced renderer. It accepts an
-            object representing a tree of `PerseusRenderer` objects. A `Shape`
-            object defines the structure of the tree and you must provide a
-            "callback" object of the same structure which defines how and where
-            to render each `PerseusRenderer` that appears in the tree.
-        </td>
-    </tr>
     <tr>
         <td><code>Renderer</code></td>
         <td><code>PerseusRenderer</code></td>

packages/perseus-editor/src/__tests__/i18n.test.ts

@@ -475,27 +475,4 @@ describe("i18n", () => {
             });
         });
     });
-
-    describe("Multi-item image finding", () => {
-        it("should find all of the images in each leaf node", () => {
-            const foundImages = i18n.findImagesInItemData({
-                _multi: {
-                    question: {
-                        __type: "content",
-                        ...exerciseImagesEverywhere.question,
-                    },
-                    hints: exerciseImagesEverywhere.hints.map((hint) => ({
-                        __type: "hint",
-                        ...hint,
-                    })),
-                },
-            });
-
-            expect(foundImages.length <= allImages.length).toBeTruthy();
-
-            _.each(allImages, (image) => {
-                expect(foundImages.indexOf(image) !== -1).toBeTruthy();
-            });
-        });
-    });
 });

packages/perseus-editor/src/components/graph-settings.tsx

@@ -92,8 +92,6 @@ const GraphSettings = createReactClass({
     },
 
     UNSAFE_componentWillReceiveProps: function (nextProps) {
-        // Make sure that state updates when switching
-        // between different items in a multi-item editor.
         if (
             !_.isEqual(this.props.labels, nextProps.labels) ||
             !_.isEqual(this.props.gridStep, nextProps.gridStep) ||