test/decode_test_driver: rm unused deadline member

has the side-effect of removing some lint and -Wshorten-64-to-32
warnings

ported from libvpx:
1b1e40c0b test/decode_test_driver: rm unused deadline member

Change-Id: Ic0ed650c856bf81f0ed2226601d86062d8fd10a4
diff --git a/test/encode_test_driver.cc b/test/encode_test_driver.cc
index a28aaed..962ff7b 100644
--- a/test/encode_test_driver.cc
+++ b/test/encode_test_driver.cc
@@ -240,7 +240,7 @@
     if (init_flags_ & AOM_CODEC_USE_OUTPUT_PARTITION)
       dec_init_flags |= AOM_CODEC_USE_INPUT_FRAGMENTS;
     testing::internal::scoped_ptr<Decoder> decoder(
-        codec_->CreateDecoder(dec_cfg, dec_init_flags, 0));
+        codec_->CreateDecoder(dec_cfg, dec_init_flags));
 #if CONFIG_AV1 && CONFIG_EXT_TILE
     if (decoder->IsAV1()) {
       // Set dec_cfg.tile_row = -1 and dec_cfg.tile_col = -1 so that the whole