vpx_mem: remove vpx_memcpy

vestigial. replace instances with memcpy() which they already were being
defined to.

Change-Id: Icfd1b0bc5d95b70efab91b9ae777ace1e81d2d7c
diff --git a/test/quantize_test.cc b/test/quantize_test.cc
index 53b36f3..3db771c 100644
--- a/test/quantize_test.cc
+++ b/test/quantize_test.cc
@@ -69,8 +69,7 @@
     // Copy macroblockd from the reference to get pre-set-up dequant values.
     macroblockd_dst_ = reinterpret_cast<MACROBLOCKD *>(
         vpx_memalign(32, sizeof(*macroblockd_dst_)));
-    vpx_memcpy(macroblockd_dst_, &vp8_comp_->mb.e_mbd,
-               sizeof(*macroblockd_dst_));
+    memcpy(macroblockd_dst_, &vp8_comp_->mb.e_mbd, sizeof(*macroblockd_dst_));
     // Fix block pointers - currently they point to the blocks in the reference
     // structure.
     vp8_setup_block_dptrs(macroblockd_dst_);
@@ -79,8 +78,7 @@
   void UpdateQuantizer(int q) {
     vp8_set_quantizer(vp8_comp_, q);
 
-    vpx_memcpy(macroblockd_dst_, &vp8_comp_->mb.e_mbd,
-               sizeof(*macroblockd_dst_));
+    memcpy(macroblockd_dst_, &vp8_comp_->mb.e_mbd, sizeof(*macroblockd_dst_));
     vp8_setup_block_dptrs(macroblockd_dst_);
   }