libct/checkCriuFeatures: rm excessive debug
libct/checkCriuFeatures: rm excessive debug

1. Remove printing criu args as now they are *always swrk 3.
2. Remove duplicated "feature check says" debug.

Before:

> DEBU[0000] Using CRIU with following args: [swrk 3]
> DEBU[0000] Using CRIU in FEATURE_CHECK mode
> DEBU[0000] Feature check says: type:FEATURE_CHECK success:true features:<mem_track:false lazy_pages:true >
> DEBU[0000] Feature check says: mem_track:false lazy_pages:true

After:

> DEBU[0000] Using CRIU in FEATURE_CHECK mode
> DEBU[0000] Feature check says: mem_track:false lazy_pages:true

Signed-off-by: Kir Kolyshkin <3a017b8ddb3f9cf3e4a59978b004111bdeb97f08@gmail.com>

opencontainers/runc,rhatdan/runc,opencontainers/runc,kolyshkin/runc,kolyshkin/runc,opencontainers/runc,dqminh/runc,kolyshkin/runc,dqminh/runc,dqminh/runc,rhatdan/runc,opencontainers/runc,kolyshkin/runc,rhatdan/runc,dqminh/runc,rhatdan/runc