tree 50d69d89b01c4726190305397fab6b6d09d4cb8d
parent aa4a3f57592668b2084764129d05508eac2f0b67
author Alex Converse <alexconv@twitch.tv> 1561749980 -0700
committer James Zern <jzern@google.com> 1567053975 -0700

Don't generate mv refs that won't be used

Spends 25% less time in dec_find_mv_refs for
grass_1_1280X768_fr30_bd8_sub8X8_l31.webm saving 0.7% overall.

Change-Id: I658bb5d6dd8ac82a568c7823dea3f4947ad7ed73