【update】web 打印 ut 优化; review by songym

Author: xiongjiaojiao

src/leaflet/services/WebPrintingJobService.js

@@ -130,9 +130,6 @@ export var WebPrintingJobService = ServiceBase.extend({
     },
 
     _processParams(params) {
-        if (!params) {
-            return {};
-        }
         if (params.layoutOptions && params.layoutOptions.littleMapOptions) {
             params.layoutOptions.littleMapOptions.center = this._toPointObject(
                 params.layoutOptions.littleMapOptions.center

src/mapboxgl/services/WebPrintingJobService.js

@@ -130,9 +130,6 @@ export class WebPrintingJobService extends ServiceBase {
     }
 
     _processParams(params) {
-        if (!params) {
-            return {};
-        }
         if (params.layoutOptions && params.layoutOptions.littleMapOptions) {
             params.layoutOptions.littleMapOptions.center = this._toPointObject(params.layoutOptions.littleMapOptions.center);
         }

src/openlayers/services/WebPrintingJobService.js

@@ -129,9 +129,6 @@ export class WebPrintingJobService extends ServiceBase {
     }
 
     _processParams(params) {
-        if (!params) {
-            return {};
-        }
         if (params.layoutOptions && params.layoutOptions.littleMapOptions) {
             params.layoutOptions.littleMapOptions.center = this._toPointObject(
                 params.layoutOptions.littleMapOptions.center