remove gate tag (part 2)

This removes all the gate tags from negative tagged tests. The gate
tag is obsolete, and it's existence in the code just makes for
confusion.

Change-Id: I2564d56fe1e0e21a88f3e1b19da8b644864d57cf
diff --git a/tempest/api/compute/volumes/test_volumes_negative.py b/tempest/api/compute/volumes/test_volumes_negative.py
index fb9f365..65d9def 100644
--- a/tempest/api/compute/volumes/test_volumes_negative.py
+++ b/tempest/api/compute/volumes/test_volumes_negative.py
@@ -39,7 +39,7 @@
         super(VolumesNegativeTest, cls).setup_clients()
         cls.client = cls.volumes_extensions_client
 
-    @test.attr(type=['negative', 'gate'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('c03ea686-905b-41a2-8748-9635154b7c57')
     def test_volume_get_nonexistent_volume_id(self):
         # Negative: Should not be able to get details of nonexistent volume
@@ -48,7 +48,7 @@
         self.assertRaises(lib_exc.NotFound, self.client.get_volume,
                           str(uuid.uuid4()))
 
-    @test.attr(type=['negative', 'gate'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('54a34226-d910-4b00-9ef8-8683e6c55846')
     def test_volume_delete_nonexistent_volume_id(self):
         # Negative: Should not be able to delete nonexistent Volume
@@ -57,7 +57,7 @@
         self.assertRaises(lib_exc.NotFound, self.client.delete_volume,
                           str(uuid.uuid4()))
 
-    @test.attr(type=['negative', 'gate'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('5125ae14-152b-40a7-b3c5-eae15e9022ef')
     def test_create_volume_with_invalid_size(self):
         # Negative: Should not be able to create volume with invalid size
@@ -67,7 +67,7 @@
         self.assertRaises(lib_exc.BadRequest, self.client.create_volume,
                           size='#$%', display_name=v_name, metadata=metadata)
 
-    @test.attr(type=['negative', 'gate'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('131cb3a1-75cc-4d40-b4c3-1317f64719b0')
     def test_create_volume_with_out_passing_size(self):
         # Negative: Should not be able to create volume without passing size
@@ -77,7 +77,7 @@
         self.assertRaises(lib_exc.BadRequest, self.client.create_volume,
                           size='', display_name=v_name, metadata=metadata)
 
-    @test.attr(type=['negative', 'gate'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('8cce995e-0a83-479a-b94d-e1e40b8a09d1')
     def test_create_volume_with_size_zero(self):
         # Negative: Should not be able to create volume with size zero
@@ -86,20 +86,20 @@
         self.assertRaises(lib_exc.BadRequest, self.client.create_volume,
                           size='0', display_name=v_name, metadata=metadata)
 
-    @test.attr(type=['negative', 'gate'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('f01904f2-e975-4915-98ce-cb5fa27bde4f')
     def test_get_invalid_volume_id(self):
         # Negative: Should not be able to get volume with invalid id
         self.assertRaises(lib_exc.NotFound,
                           self.client.get_volume, '#$%%&^&^')
 
-    @test.attr(type=['negative', 'gate'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('62bab09a-4c03-4617-8cca-8572bc94af9b')
     def test_get_volume_without_passing_volume_id(self):
         # Negative: Should not be able to get volume when empty ID is passed
         self.assertRaises(lib_exc.NotFound, self.client.get_volume, '')
 
-    @test.attr(type=['negative', 'gate'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('62972737-124b-4513-b6cf-2f019f178494')
     def test_delete_invalid_volume_id(self):
         # Negative: Should not be able to delete volume when invalid ID is
@@ -107,7 +107,7 @@
         self.assertRaises(lib_exc.NotFound,
                           self.client.delete_volume, '!@#$%^&*()')
 
-    @test.attr(type=['negative', 'gate'])
+    @test.attr(type=['negative'])
     @test.idempotent_id('0d1417c5-4ae8-4c2c-adc5-5f0b864253e5')
     def test_delete_volume_without_passing_volume_id(self):
         # Negative: Should not be able to delete volume when empty ID is passed