Remove changeView from the plugin API

The plugin.changeView references the non-existing GrChangeViewApi class.

Change-Id: I505f7d8fc7a75a36248d41639be5315d7a358dc6

Documentation/pg-plugin-dev.txt

@@ -211,11 +211,6 @@ to be used by plugin authors.
 
 Note: TODO
 
-=== changeView
-`plugin.changeView()`
-
-Note: TODO
-
 === delete
 `plugin.delete(url, opt_callback)`
 

polygerrit-ui/app/.eslintrc.js

@@ -166,7 +166,6 @@ module.exports = {
     // Instead export variables from modules
     // TODO(dmfilippov): Remove global variables from polygerrit
     "Gerrit": "readonly",
-    "GrChangeViewApi": "readonly",
     "GrEventHelper": "readonly",
     "GrPluginActionContext": "readonly",
     "GrPluginRestApi": "readonly",

polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-public-js-api.js

@@ -206,10 +206,6 @@ import {GrChangeMetadataApi} from '../../plugins/gr-change-metadata-api/gr-chang
     return new GrChangeReplyInterface(this);
   };
 
-  Plugin.prototype.changeView = function() {
-    return new GrChangeViewApi(this);
-  };
-
   Plugin.prototype.theme = function() {
     return new GrThemeApi(this);
   };