stackdriver: only load project name if it's not already stored in the ds info json

public/app/plugins/datasource/stackdriver/datasource.ts

@@ -222,6 +222,12 @@ export default class StackdriverDatasource {
 
 
   async getDefaultProject() {
   async getDefaultProject() {
     try {
     try {
+      if (this.projectName) {
+        return {
+          id: this.projectName,
+          name: this.projectName,
+        };
+      } else {
         const projects = await this.getProjects();
         const projects = await this.getProjects();
         if (projects && projects.length > 0) {
         if (projects && projects.length > 0) {
           const test = projects.filter(p => p.id === this.projectName)[0];
           const test = projects.filter(p => p.id === this.projectName)[0];
@@ -229,6 +235,7 @@ export default class StackdriverDatasource {
         } else {
         } else {
           throw new Error('No projects found');
           throw new Error('No projects found');
         }
         }
+      }
     } catch (error) {
     } catch (error) {
       let message = 'Projects cannot be fetched: ';
       let message = 'Projects cannot be fetched: ';
       message += error.statusText ? error.statusText + ': ' : '';
       message += error.statusText ? error.statusText + ': ' : '';