dashboard: remove job default variable

Part of #206
Part of #207

Author: DifferentialOrange

dashboard/build/config.libsonnet

@@ -24,7 +24,7 @@ local variable = import 'dashboard/variable.libsonnet';
       description: 'Dashboard for Tarantool application and database server monitoring, based on grafonnet library.',
       grafana_tags: ['tarantool'],
       datasource: variable.datasource.prometheus,
-      filters: { job: ['=~', variable.prometheus.job] },
+      filters: {},
       sections: [
         'cluster',
         'replication',

tests/Prometheus/dashboard_with_custom_panels.jsonnet

@@ -7,7 +7,7 @@ local variable = import 'dashboard/variable.libsonnet';
 
 local cfg = config.prepare({
   type: variable.datasource_type.prometheus,
-  filters: { alias: ['=~', variable.prometheus.alias] },
+  filters: { job: ['=~', variable.prometheus.job], alias: ['=~', variable.prometheus.alias] },
 });
 
 dashboard.addPanels([