MSSQL: Fixes issue with hidden queries still being executed (#35837) (#35861)

(cherry picked from commit 5f07381796)

Co-authored-by: Torkel Ödegaard <torkel@grafana.org>

public/app/plugins/datasource/mssql/datasource.ts

@@ -111,6 +111,10 @@ export class MssqlDatasource extends DataSourceWithBackend<MssqlQuery, MssqlOpti
       .toPromise();
   }
 
+  filterQuery(query: MssqlQuery): boolean {
+    return !query.hide;
+  }
+
   metricFindQuery(query: string, optionalOptions: any): Promise<MetricFindValue[]> {
     let refId = 'tempvar';
     if (optionalOptions && optionalOptions.variable && optionalOptions.variable.name) {

public/app/plugins/datasource/mysql/datasource.ts

@@ -71,10 +71,7 @@ export class MysqlDatasource extends DataSourceWithBackend<MySQLQuery, MySQLOpti
   }
 
   filterQuery(query: MySQLQuery): boolean {
-    if (query.hide) {
-      return false;
-    }
-    return true;
+    return !query.hide;
   }
 
   applyTemplateVariables(target: MySQLQuery, scopedVars: ScopedVars): Record<string, any> {