stackdriver: rename query function

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

@@ -7,7 +7,7 @@ import { getMetricTypesByService, getAlignmentOptionsByMetric, getAggregationOpt
 export default class StackdriverMetricFindQuery {
   constructor(private datasource) {}
 
-  async query(query: any) {
+  async execute(query: any) {
     try {
       switch (query.selectedQueryType) {
         case MetricFindQueryTypes.MetricTypes:

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

@@ -184,8 +184,7 @@ export default class StackdriverDatasource {
 
   async metricFindQuery(query) {
     const stackdriverMetricFindQuery = new StackdriverMetricFindQuery(this);
-    return stackdriverMetricFindQuery.query(query);
-    // throw new Error('Template variables support is not yet imlemented');
+    return stackdriverMetricFindQuery.execute(query);
   }
 
   async testDatasource() {