【update】放开webmap的svg单元测试 （reviewed by songym）

Author: Yuki-Zhao

test/openlayers/mapping/WebMapSpec.js

@@ -407,7 +407,7 @@ describe('openlayers_WebMap', () => {
             done();
         }, 1000)
     });
-    xit('createThemeLayer_Vector_SVG', (done) => {
+    it('createThemeLayer_Vector_SVG', (done) => {
         let options = {
             server: server,
             successCallback: function () {},