PanelMenu: Remove hide legend action as it was showing on all panel types (#54876)

* PanelMenu: Remove hide legend action

* Fix test

* Updated

.betterer.results

@@ -4200,13 +4200,12 @@ exports[`better eslint`] = {
       [0, 0, 0, "Unexpected any. Specify a different type.", "7"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "8"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "9"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "10"],
-      [0, 0, 0, "Do not use any type assertions.", "11"],
+      [0, 0, 0, "Do not use any type assertions.", "10"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "11"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "12"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "13"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "14"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "15"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "16"]
+      [0, 0, 0, "Unexpected any. Specify a different type.", "15"]
     ],
     "public/app/features/dashboard/utils/panelMerge.test.ts:5381": [
       [0, 0, 0, "Unexpected any. Specify a different type.", "0"],

public/app/features/dashboard/utils/getPanelMenu.test.ts

@@ -45,12 +45,6 @@ describe('getPanelMenu', () => {
           "shortcut": "x",
           "text": "Explore",
         },
-        Object {
-          "iconClassName": "exchange-alt",
-          "onClick": [Function],
-          "shortcut": "p l",
-          "text": "Show legend",
-        },
         Object {
           "iconClassName": "info-circle",
           "onClick": [Function],
@@ -135,12 +129,6 @@ describe('getPanelMenu', () => {
             "shortcut": "x",
             "text": "Explore",
           },
-          Object {
-            "iconClassName": "exchange-alt",
-            "onClick": [Function],
-            "shortcut": "p l",
-            "text": "Show legend",
-          },
           Object {
             "iconClassName": "info-circle",
             "onClick": [Function],

public/app/features/dashboard/utils/getPanelMenu.ts

@@ -48,11 +48,6 @@ export function getPanelMenu(
     sharePanel(dashboard, panel);
   };
 
-  const onToggleLegend = (event: React.MouseEvent<any>) => {
-    event.preventDefault();
-    toggleLegend(panel);
-  };
-
   const onAddLibraryPanel = (event: React.MouseEvent<any>) => {
     event.preventDefault();
     addLibraryPanel(dashboard, panel);
@@ -96,6 +91,10 @@ export function getPanelMenu(
     store.dispatch(navigateToExplore(panel, { getDataSourceSrv, getTimeSrv, getExploreUrl, openInNewWindow }) as any);
   };
 
+  const onToggleLegend = (event: React.MouseEvent) => {
+    event.preventDefault();
+    toggleLegend(panel);
+  };
   const menu: PanelMenuItem[] = [];
 
   if (!panel.isEditing) {
@@ -141,13 +140,6 @@ export function getPanelMenu(
     });
   }
 
-  menu.push({
-    text: panel.options.legend?.showLegend ? 'Hide legend' : 'Show legend',
-    iconClassName: 'exchange-alt',
-    onClick: onToggleLegend,
-    shortcut: 'p l',
-  });
-
   const inspectMenu: PanelMenuItem[] = [];
 
   // Only show these inspect actions for data plugins
@@ -192,6 +184,7 @@ export function getPanelMenu(
     id: 'panel.header-menu.inspect',
     message: `Inspect`,
   });
+
   menu.push({
     type: 'submenu',
     text: inspectTextTranslation,
@@ -251,6 +244,14 @@ export function getPanelMenu(
     }
   }
 
+  if (panel.options.legend) {
+    subMenu.push({
+      text: panel.options.legend.showLegend ? 'Hide legend' : 'Show legend',
+      onClick: onToggleLegend,
+      shortcut: 'p l',
+    });
+  }
+
   if (!panel.isEditing && subMenu.length) {
     const moreTextTranslation = t({
       id: 'panel.header-menu.more',