chore(lint): remove unused imports (#11923)

This was done automatically by tslint, which can now fix issues it finds.
The fixer is still pending in PR https://github.com/palantir/tslint/pull/1568
Also I have a local bugfix for https://github.com/palantir/tslint/issues/1569
which causes too many imports to be deleted.

modules/@angular/http/src/backends/jsonp_backend.ts

@@ -10,7 +10,7 @@ import {Injectable} from '@angular/core';
 import {Observable} from 'rxjs/Observable';
 import {Observer} from 'rxjs/Observer';
 
-import {BaseResponseOptions, ResponseOptions} from '../base_response_options';
+import {ResponseOptions} from '../base_response_options';
 import {ReadyState, RequestMethod, ResponseType} from '../enums';
 import {StringWrapper, isPresent} from '../facade/lang';
 import {Connection, ConnectionBackend} from '../interfaces';

modules/@angular/http/src/base_response_options.ts

@@ -8,7 +8,7 @@
 
 import {Injectable} from '@angular/core';
 
-import {isJsObject, isPresent} from '../src/facade/lang';
+import {isPresent} from '../src/facade/lang';
 
 import {ResponseType} from './enums';
 import {Headers} from './headers';

modules/@angular/http/src/http.ts

@@ -16,7 +16,6 @@ import {RequestMethod} from './enums';
 import {ConnectionBackend, RequestOptionsArgs} from './interfaces';
 import {Request} from './static_request';
 import {Response} from './static_response';
-import {URLSearchParams} from './url_search_params';
 
 function httpRequest(backend: ConnectionBackend, request: Request): Observable<Response> {
   return backend.createConnection(request).response;

modules/@angular/http/src/static_response.ts

@@ -6,13 +6,12 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Json, isString} from '../src/facade/lang';
+
 
 import {ResponseOptions} from './base_response_options';
 import {Body} from './body';
 import {ResponseType} from './enums';
 import {Headers} from './headers';
-import {isJsObject} from './http_utils';
 
 
 /**

modules/@angular/http/test/backends/jsonp_backend_spec.ts

@@ -7,7 +7,7 @@
  */
 
 import {ReflectiveInjector} from '@angular/core';
-import {AsyncTestCompleter, SpyObject, afterEach, beforeEach, ddescribe, describe, iit, inject, it, xit} from '@angular/core/testing/testing_internal';
+import {AsyncTestCompleter, SpyObject, afterEach, beforeEach, describe, inject, it} from '@angular/core/testing/testing_internal';
 import {expect} from '@angular/platform-browser/testing/matchers';
 import {BrowserJsonp} from '../../src/backends/browser_jsonp';
 import {JSONPBackend, JSONPBackend_, JSONPConnection, JSONPConnection_} from '../../src/backends/jsonp_backend';
@@ -16,7 +16,6 @@ import {BaseResponseOptions, ResponseOptions} from '../../src/base_response_opti
 import {ReadyState, RequestMethod, ResponseType} from '../../src/enums';
 import {isPresent} from '../../src/facade/lang';
 import {Request} from '../../src/static_request';
-import {Response} from '../../src/static_response';
 
 var existingScripts: MockBrowserJsonp[] = [];
 

modules/@angular/http/test/backends/mock_backend_spec.ts

@@ -7,7 +7,7 @@
  */
 
 import {ReflectiveInjector} from '@angular/core';
-import {AsyncTestCompleter, afterEach, beforeEach, ddescribe, describe, iit, inject, it, xit} from '@angular/core/testing/testing_internal';
+import {AsyncTestCompleter, beforeEach, describe, inject, it, xit} from '@angular/core/testing/testing_internal';
 import {expect} from '@angular/platform-browser/testing/matchers';
 import {ReplaySubject} from 'rxjs/ReplaySubject';
 

modules/@angular/http/test/backends/xhr_backend_spec.ts

@@ -7,7 +7,7 @@
  */
 
 import {Injectable} from '@angular/core';
-import {AsyncTestCompleter, SpyObject, afterEach, beforeEach, beforeEachProviders, ddescribe, describe, expect, iit, inject, it, xit} from '@angular/core/testing/testing_internal';
+import {AsyncTestCompleter, SpyObject, afterEach, beforeEach, beforeEachProviders, describe, expect, inject, it} from '@angular/core/testing/testing_internal';
 import {__platform_browser_private__} from '@angular/platform-browser';
 
 import {BrowserXhr} from '../../src/backends/browser_xhr';

modules/@angular/http/test/base_request_options_spec.ts

@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {beforeEach, ddescribe, describe, expect, iit, inject, it, xit} from '@angular/core/testing/testing_internal';
+import {describe, expect, it} from '@angular/core/testing/testing_internal';
 import {BaseRequestOptions, RequestOptions} from '../src/base_request_options';
 import {RequestMethod} from '../src/enums';
 

modules/@angular/http/test/headers_spec.ts

@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {beforeEach, ddescribe, describe, expect, iit, inject, it, xit} from '@angular/core/testing/testing_internal';
+import {beforeEach, describe, expect, it} from '@angular/core/testing/testing_internal';
 import {Json} from '../src/facade/lang';
 import {Headers} from '../src/headers';
 

modules/@angular/http/test/http_spec.ts

@@ -8,7 +8,7 @@
 
 import {Injector, ReflectiveInjector} from '@angular/core';
 import {TestBed, getTestBed} from '@angular/core/testing';
-import {AsyncTestCompleter, afterEach, beforeEach, ddescribe, describe, iit, inject, it, xit} from '@angular/core/testing/testing_internal';
+import {AsyncTestCompleter, afterEach, beforeEach, describe, inject, it} from '@angular/core/testing/testing_internal';
 import {expect} from '@angular/platform-browser/testing/matchers';
 import {Observable} from 'rxjs/Observable';
 import {zip} from 'rxjs/observable/zip';

modules/@angular/http/test/url_search_params_spec.ts

@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {beforeEach, ddescribe, describe, expect, iit, inject, it, xit} from '@angular/core/testing/testing_internal';
+import {describe, expect, it} from '@angular/core/testing/testing_internal';
 import {URLSearchParams} from '../src/url_search_params';
 
 export function main() {