Remove rxjs operators (#6989)

* do not import rxjs-operators if using HttpClinet

* generate code

* do not import operators if they are not needed

Author: topce

modules/swagger-codegen/src/main/resources/typescript-angular/api.service.mustache

@@ -15,7 +15,9 @@ import { CustomQueryEncoderHelper }                          from '../encoder';
 {{/useHttpClient}}
 
 import { Observable }                                        from 'rxjs/Observable';
+{{^useHttpClient}}
 import '../rxjs-operators';
+{{/useHttpClient}}
 
 {{#imports}}
 import { {{classname}} } from '../{{filename}}';

modules/swagger-codegen/src/main/resources/typescript-angular/rxjs-operators.mustache

@@ -1,3 +1,8 @@
+{{#useHttpClient}}
+// RxJS imports are not needed for Angular 4.3 and later
+{{/useHttpClient}}
+
+{{^useHttpClient}}
 // RxJS imports according to https://angular.io/docs/ts/latest/guide/server-communication.html#!#rxjs
 
 // See node_module/rxjs/Rxjs.js
@@ -9,3 +14,4 @@ import 'rxjs/add/observable/throw';
 // Operators
 import 'rxjs/add/operator/catch';
 import 'rxjs/add/operator/map';
+{{/useHttpClient}}

samples/client/petstore/typescript-angular-v2/default/rxjs-operators.ts

@@ -1,3 +1,4 @@
+
 // RxJS imports according to https://angular.io/docs/ts/latest/guide/server-communication.html#!#rxjs
 
 // See node_module/rxjs/Rxjs.js

samples/client/petstore/typescript-angular-v2/npm/rxjs-operators.ts

@@ -1,3 +1,4 @@
+
 // RxJS imports according to https://angular.io/docs/ts/latest/guide/server-communication.html#!#rxjs
 
 // See node_module/rxjs/Rxjs.js

samples/client/petstore/typescript-angular-v2/with-interfaces/rxjs-operators.ts

@@ -1,3 +1,4 @@
+
 // RxJS imports according to https://angular.io/docs/ts/latest/guide/server-communication.html#!#rxjs
 
 // See node_module/rxjs/Rxjs.js

samples/client/petstore/typescript-angular-v4.3/npm/api/pet.service.ts

@@ -17,7 +17,6 @@ import { HttpClient, HttpHeaders, HttpParams,
 import { CustomHttpUrlEncodingCodec }                        from '../encoder';
 
 import { Observable }                                        from 'rxjs/Observable';
-import '../rxjs-operators';
 
 import { ApiResponse } from '../model/apiResponse';
 import { Pet } from '../model/pet';

samples/client/petstore/typescript-angular-v4.3/npm/api/store.service.ts

@@ -17,7 +17,6 @@ import { HttpClient, HttpHeaders, HttpParams,
 import { CustomHttpUrlEncodingCodec }                        from '../encoder';
 
 import { Observable }                                        from 'rxjs/Observable';
-import '../rxjs-operators';
 
 import { Order } from '../model/order';
 

samples/client/petstore/typescript-angular-v4.3/npm/api/user.service.ts

@@ -17,7 +17,6 @@ import { HttpClient, HttpHeaders, HttpParams,
 import { CustomHttpUrlEncodingCodec }                        from '../encoder';
 
 import { Observable }                                        from 'rxjs/Observable';
-import '../rxjs-operators';
 
 import { User } from '../model/user';
 

samples/client/petstore/typescript-angular-v4.3/npm/rxjs-operators.ts

@@ -1,11 +1,2 @@
-// RxJS imports according to https://angular.io/docs/ts/latest/guide/server-communication.html#!#rxjs
+// RxJS imports are not needed for Angular 4.3 and later
 
-// See node_module/rxjs/Rxjs.js
-// Import just the rxjs statics and operators we need for THIS app.
-
-// Statics
-import 'rxjs/add/observable/throw';
-
-// Operators
-import 'rxjs/add/operator/catch';
-import 'rxjs/add/operator/map';

samples/client/petstore/typescript-angular-v4/npm/rxjs-operators.ts

@@ -1,3 +1,4 @@
+
 // RxJS imports according to https://angular.io/docs/ts/latest/guide/server-communication.html#!#rxjs
 
 // See node_module/rxjs/Rxjs.js