[dts] [PATCH V2 4/4] tests/quota_watermark: remove test suite and plan

[Tu, Lijuan]

> Subject: [dts] [PATCH V2 4/4] tests/quota_watermark: remove test suite and
> plan
> 
> The qw app removed from DPDK, so remove the test suite and plan too.
> 
> Signed-off-by: Jianwei Mei <jianweix.mei at intel.com>

Applied the series.