Removing plugin list panel (#46914)

The core plugin named plugin list panel is removed

pkg/plugins/manager/manager_integration_test.go

@@ -127,7 +127,6 @@ func verifyCorePluginCatalogue(t *testing.T, pm *PluginManager) {
 		"news":           {},
 		"nodeGraph":      {},
 		"piechart":       {},
-		"pluginlist":     {},
 		"stat":           {},
 		"state-timeline": {},
 		"status-history": {},

pkg/schema/testdata/devenvgoldenfiles/all-panels.json

@@ -444,27 +444,6 @@
 				"overrides": []
 			}
 		},
-		{
-			"gridPos": {
-				"h": 8,
-				"w": 12,
-				"x": 0,
-				"y": 29
-			},
-			"id": 30,
-			"title": "Panel list",
-			"type": "pluginlist",
-			"transparent": false,
-			"repeatDirection": "h",
-			"transformations": [],
-			"options": {},
-			"fieldConfig": {
-				"defaults": {
-					"custom": {}
-				},
-				"overrides": []
-			}
-		},
 		{
 			"gridPos": {
 				"h": 8,

pkg/services/searchV2/extract/testdata/devdash-all-panels-info.json

@@ -55,11 +55,6 @@
       "type": "dashlist",
       "pluginVersion": "8.1.0-pre"
     },
-    {
-      "id": 30,
-      "title": "Panel list",
-      "type": "pluginlist"
-    },
     {
       "id": 6,
       "title": "Alert list",

pkg/tests/api/plugins/data/expectedListResp.json

@@ -1034,42 +1034,6 @@
     "signatureType": "",
     "signatureOrg": ""
   },
-  {
-    "name": "Plugin list",
-    "type": "panel",
-    "id": "pluginlist",
-    "enabled": true,
-    "pinned": false,
-    "info": {
-      "author": {
-        "name": "Grafana Labs",
-        "url": "https://grafana.com"
-      },
-      "description": "Plugin List for Grafana",
-      "links": null,
-      "logos": {
-        "small": "public/app/plugins/panel/pluginlist/img/icn-dashlist-panel.svg",
-        "large": "public/app/plugins/panel/pluginlist/img/icn-dashlist-panel.svg"
-      },
-      "build": {},
-      "screenshots": null,
-      "version": "",
-      "updated": ""
-    },
-    "dependencies": {
-      "grafanaDependency": "",
-      "grafanaVersion": "*",
-      "plugins": []
-    },
-    "latestVersion": "",
-    "hasUpdate": false,
-    "defaultNavUrl": "/plugins/pluginlist/",
-    "category": "",
-    "state": "",
-    "signature": "internal",
-    "signatureType": "",
-    "signatureOrg": ""
-  },
   {
     "name": "PostgreSQL",
     "type": "datasource",