remove smoke tag from negative tests

the smoke tag should be a small set of representative tests to ensure
something is working, negative tests are beyond scope of what should
be in this tag.

Change-Id: Icf41b8d38ea71d887d91f7797d8fa061bb6209fb
diff --git a/tempest/api/network/test_routers_negative.py b/tempest/api/network/test_routers_negative.py
index 4149be3..d2afcba 100644
--- a/tempest/api/network/test_routers_negative.py
+++ b/tempest/api/network/test_routers_negative.py
@@ -43,7 +43,7 @@
                            if cls._ip_version == 4 else
                            CONF.network.tenant_network_v6_cidr)
 
-    @test.attr(type=['negative', 'smoke'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('37a94fc0-a834-45b9-bd23-9a81d2fd1e22')
     def test_router_add_gateway_invalid_network_returns_404(self):
         self.assertRaises(lib_exc.NotFound,
@@ -52,7 +52,7 @@
                           external_gateway_info={
                               'network_id': self.router['id']})
 
-    @test.attr(type=['negative', 'smoke'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('11836a18-0b15-4327-a50b-f0d9dc66bddd')
     def test_router_add_gateway_net_not_external_returns_400(self):
         alt_network = self.create_network(
@@ -65,7 +65,7 @@
                           external_gateway_info={
                               'network_id': alt_network['id']})
 
-    @test.attr(type=['negative', 'smoke'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('957751a3-3c68-4fa2-93b6-eb52ea10db6e')
     def test_add_router_interfaces_on_overlapping_subnets_returns_400(self):
         network01 = self.create_network(
@@ -81,7 +81,7 @@
                           self.router['id'],
                           subnet02['id'])
 
-    @test.attr(type=['negative', 'smoke'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('04df80f9-224d-47f5-837a-bf23e33d1c20')
     def test_router_remove_interface_in_use_returns_409(self):
         self.client.add_router_interface_with_subnet_id(
@@ -90,21 +90,21 @@
                           self.client.delete_router,
                           self.router['id'])
 
-    @test.attr(type=['negative', 'smoke'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('c2a70d72-8826-43a7-8208-0209e6360c47')
     def test_show_non_existent_router_returns_404(self):
         router = data_utils.rand_name('non_exist_router')
         self.assertRaises(lib_exc.NotFound, self.client.show_router,
                           router)
 
-    @test.attr(type=['negative', 'smoke'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('b23d1569-8b0c-4169-8d4b-6abd34fad5c7')
     def test_update_non_existent_router_returns_404(self):
         router = data_utils.rand_name('non_exist_router')
         self.assertRaises(lib_exc.NotFound, self.client.update_router,
                           router, name="new_name")
 
-    @test.attr(type=['negative', 'smoke'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('c7edc5ad-d09d-41e6-a344-5c0c31e2e3e4')
     def test_delete_non_existent_router_returns_404(self):
         router = data_utils.rand_name('non_exist_router')
@@ -132,7 +132,7 @@
         cls.network = cls.create_network()
         cls.subnet = cls.create_subnet(cls.network)
 
-    @test.attr(type=['negative', 'smoke'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('4990b055-8fc7-48ab-bba7-aa28beaad0b9')
     def test_router_create_tenant_distributed_returns_forbidden(self):
         self.assertRaises(lib_exc.Forbidden,