[2210] editorial cleanup: removed a redundant blank line.

src/bin/auth/tests/datasrc_clients_builder_unittest.cc

@@ -163,7 +163,6 @@ TEST_F(DataSrcClientsBuilderTest, shutdown) {
     EXPECT_FALSE(builder.handleCommand(shutdown_cmd));
 }
 
-
 TEST_F(DataSrcClientsBuilderTest, badCommand) {
     // out-of-range command ID
     EXPECT_THROW(builder.handleCommand(Command(NUM_COMMANDS,