Remove support for wildcard ns match domain

Signed-off-by: bcmmbaga <bethuelmbaga12@gmail.com>

management/server/nameserver_test.go

@@ -904,10 +904,15 @@ func TestValidateDomain(t *testing.T) {
 			errFunc: require.NoError,
 		},
 		{
-			name:    "Valid wildcard domain",
-			domain:  "*.example",
+			name:    "Valid domain name with trailing dot",
+			domain:  "example.",
 			errFunc: require.NoError,
 		},
+		{
+			name:    "Invalid wildcard domain name",
+			domain:  "*.example",
+			errFunc: require.Error,
+		},
 		{
 			name:    "Invalid domain name with leading dot",
 			domain:  ".com",