avx2 dr prediction valgrind bug fix

BUG=aomedia:2288

Change-Id: Ibcddf6702373ebdfbf2d774803120c7551ae3400
diff --git a/aom_dsp/x86/intrapred_avx2.c b/aom_dsp/x86/intrapred_avx2.c
index ae18bc3..97569b3 100644
--- a/aom_dsp/x86/intrapred_avx2.c
+++ b/aom_dsp/x86/intrapred_avx2.c
@@ -1665,7 +1665,6 @@
     int dy) {
   const int min_base_x = -(1 << upsample_above);
   const int min_base_y = -(1 << upsample_left);
-  (void)min_base_y;
   const int frac_bits_x = 6 - upsample_above;
   const int frac_bits_y = 6 - upsample_left;
 
diff --git a/av1/common/av1_rtcd_defs.pl b/av1/common/av1_rtcd_defs.pl
index 4b8ea99..163a0a7 100644
--- a/av1/common/av1_rtcd_defs.pl
+++ b/av1/common/av1_rtcd_defs.pl
@@ -160,8 +160,7 @@
 add_proto qw/void av1_highbd_dr_prediction_z1/, "uint16_t *dst, ptrdiff_t stride, int bw, int bh, const uint16_t *above, const uint16_t *left, int upsample_above, int dx, int dy, int bd";
 specialize qw/av1_highbd_dr_prediction_z1 avx2/;
 add_proto qw/void av1_highbd_dr_prediction_z2/, "uint16_t *dst, ptrdiff_t stride, int bw, int bh, const uint16_t *above, const uint16_t *left, int upsample_above, int upsample_left, int dx, int dy, int bd";
-# TODO(https://crbug.com/aomedia/2288)
-# specialize qw/av1_highbd_dr_prediction_z2 avx2/;
+specialize qw/av1_highbd_dr_prediction_z2 avx2/;
 add_proto qw/void av1_highbd_dr_prediction_z3/, "uint16_t *dst, ptrdiff_t stride, int bw, int bh, const uint16_t *above, const uint16_t *left, int upsample_left, int dx, int dy, int bd";
 specialize qw/av1_highbd_dr_prediction_z3 avx2/;
 
diff --git a/test/dr_prediction_test.cc b/test/dr_prediction_test.cc
index 603694f..674490f 100644
--- a/test/dr_prediction_test.cc
+++ b/test/dr_prediction_test.cc
@@ -397,7 +397,6 @@
                           &z1_wrapper_hbd<av1_highbd_dr_prediction_z1_c>,
                           &z1_wrapper_hbd<av1_highbd_dr_prediction_z1_avx2>,
                           AOM_BITS_12, kZ1Start),
-                      /* TODO(https://crbug.com/aomedia/2288)
                       DrPredFunc<DrPred_Hbd>(
                           &z2_wrapper_hbd<av1_highbd_dr_prediction_z2_c>,
                           &z2_wrapper_hbd<av1_highbd_dr_prediction_z2_avx2>,
@@ -410,7 +409,6 @@
                           &z2_wrapper_hbd<av1_highbd_dr_prediction_z2_c>,
                           &z2_wrapper_hbd<av1_highbd_dr_prediction_z2_avx2>,
                           AOM_BITS_12, kZ2Start),
-                          */
                       DrPredFunc<DrPred_Hbd>(
                           &z3_wrapper_hbd<av1_highbd_dr_prediction_z3_c>,
                           &z3_wrapper_hbd<av1_highbd_dr_prediction_z3_avx2>,