build_inter_predictors(): Remove unnecessary args
build_inter_predictors(): Remove unnecessary args

- Two args were always 0.
- Other two args were duplicates.

Change-Id: I997c4e9288030eed723ad42a9ccb7e07c5a072d2

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