SQL Datasources: Use health check for config test (#59867)

* SQL Datasources: Use health check for config test

* Remove unnecessary test

* Fix test errors

* Revert mysql go driver update

* Use transform query error

* Use TransformQueryError from sql_engine

public/app/features/plugins/sql/datasource/SqlDatasource.ts

@@ -1,5 +1,5 @@
-import { lastValueFrom, of } from 'rxjs';
-import { catchError, map } from 'rxjs/operators';
+import { lastValueFrom } from 'rxjs';
+import { map } from 'rxjs/operators';
 
 import {
   DataFrame,
@@ -19,7 +19,7 @@ import {
   getTemplateSrv,
   TemplateSrv,
 } from '@grafana/runtime';
-import { toDataQueryResponse, toTestingStatus } from '@grafana/runtime/src/utils/queryResponse';
+import { toDataQueryResponse } from '@grafana/runtime/src/utils/queryResponse';
 import { getTimeSrv } from 'app/features/dashboard/services/TimeSrv';
 
 import { VariableWithMultiSupport } from '../../../variables/types';
@@ -170,45 +170,6 @@ export abstract class SqlDatasource extends DataSourceWithBackend<SQLQuery, SQLO
     );
   }
 
-  testDatasource(): Promise<{ status: string; message: string }> {
-    const refId = 'A';
-    return lastValueFrom(
-      getBackendSrv()
-        .fetch<BackendDataSourceResponse>({
-          url: '/api/ds/query',
-          method: 'POST',
-          headers: this.getRequestHeaders(),
-          data: {
-            from: '5m',
-            to: 'now',
-            queries: [
-              {
-                refId: refId,
-                intervalMs: 1,
-                maxDataPoints: 1,
-                datasource: this.getRef(),
-                datasourceId: this.id,
-                rawSql: 'SELECT 1',
-                format: 'table',
-              },
-            ],
-          },
-        })
-        .pipe(
-          map((r) => {
-            const error = r.data.results[refId].error;
-            if (error) {
-              return { status: 'error', message: error };
-            }
-            return { status: 'success', message: 'Database Connection OK' };
-          }),
-          catchError((err) => {
-            return of(toTestingStatus(err));
-          })
-        )
-    );
-  }
-
   targetContainsTemplate(target: SQLQuery) {
     let queryWithoutMacros = target.rawSql;
     MACRO_NAMES.forEach((value) => {