refactor(@angular-devkit/build-angular): remove unneeded core JsonObject type usage

The architect runtime no longer requires builder options to include the JsonObject in its type definition when calling `createBuilder`. The remaining cases in this package have been removed.

Author: clydin

packages/angular_devkit/build_angular/src/builders/app-shell/index.ts

@@ -154,7 +154,7 @@ async function _getServerModuleBundlePath(
 }
 
 async function _appShellBuilder(
-  options: JsonObject & BuildWebpackAppShellSchema,
+  options: BuildWebpackAppShellSchema,
   context: BuilderContext,
 ): Promise<BuilderOutput> {
   const browserTarget = targetFromTargetString(options.browserTarget);

packages/angular_devkit/build_angular/src/builders/extract-i18n/index.ts

@@ -317,4 +317,4 @@ export async function execute(
   return webpackResult;
 }
 
-export default createBuilder<JsonObject & ExtractI18nBuilderOptions>(execute);
+export default createBuilder<ExtractI18nBuilderOptions>(execute);

packages/angular_devkit/build_angular/src/builders/protractor/index.ts

@@ -12,7 +12,7 @@ import {
   createBuilder,
   targetFromTargetString,
 } from '@angular-devkit/architect';
-import { JsonObject, tags } from '@angular-devkit/core';
+import { tags } from '@angular-devkit/core';
 import { resolve } from 'path';
 import * as url from 'url';
 import { runModuleAsObservableFork } from '../../utils';
@@ -171,4 +171,4 @@ export async function execute(
   }
 }
 
-export default createBuilder<JsonObject & ProtractorBuilderOptions>(execute);
+export default createBuilder<ProtractorBuilderOptions>(execute);

packages/angular_devkit/build_angular/src/builders/server/index.ts

@@ -141,7 +141,7 @@ export function execute(
   );
 }
 
-export default createBuilder<json.JsonObject & ServerBuilderOptions, ServerBuilderOutput>(execute);
+export default createBuilder<ServerBuilderOptions, ServerBuilderOutput>(execute);
 
 async function initialize(
   options: ServerBuilderOptions,