Remove unnecessary memset in build_intra_predictors()
Remove unnecessary memset in build_intra_predictors()

Change-Id: I3064152e2c37ed330adc388e62acc2948a5cea82

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