Revert "Use correct register class for refs"

This reverts commit 5c2555407d823356fb55ea3ffdf281aac00a583e.

Change-Id: I0490e9b1a9470e429f31911c9a4f28f71df78cc1
diff --git a/compiler/dex/quick/gen_common.cc b/compiler/dex/quick/gen_common.cc
index 9cf601b..061ee07 100644
--- a/compiler/dex/quick/gen_common.cc
+++ b/compiler/dex/quick/gen_common.cc
@@ -481,7 +481,7 @@
   } else if (!info->is_range) {
     // TUNING: interleave
     for (int i = 0; i < elems; i++) {
-      RegLocation rl_arg = LoadValue(info->args[i], info->args[i].ref ? kRefReg : kCoreReg);
+      RegLocation rl_arg = LoadValue(info->args[i], kCoreReg);
       Store32Disp(ref_reg,
                   mirror::Array::DataOffset(component_size).Int32Value() + i * 4, rl_arg.reg);
       // If the LoadValue caused a temp to be allocated, free it