tree f4c0f72091bbbb915c13408570a39e63ea9c0c94
parent eb7c218b00f04492cd49a962a6acc8e037efa40d
author Yunqing Wang <yunqingwang@google.com> 1566592165 -0700
committer Yunqing Wang <yunqingwang@google.com> 1566592165 -0700

Turn on prune_tx_type_using_stats at speed 3

Turned on prune_tx_type_using_stats at speed 3 as well.
Borg test result:
         avg_psnr:   ovr_psnr:   ssim:   avg encoder speedup:
hdres:    0.103       0.094      0.035     3.0%
midres:   0.123       0.128     -0.005     3.8%

Change-Id: Ie56bd04a44f5f76f0aaab3b02d4f50afdd02c621