A small cleanup on LOWDELAY_COMPOUND
A small cleanup on LOWDELAY_COMPOUND

BUG=aomedia:442

Change-Id: I98ada843016d0dd046f89bbcb2e9ae72442a101e

GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom