Revert^4 "Implement Dot Product Vectorization for x86"

This reverts commit 8e895008a3e2f2813bb46cb0c6bc76884e46e9ac.

Reason for revert: The test failure seems unrelated.
Bug: 144947842

Change-Id: I7b437f0443d71a5c762e1a8372564ed989971cc9
diff --git a/compiler/utils/x86/assembler_x86_test.cc b/compiler/utils/x86/assembler_x86_test.cc
index 12d9646..9253730 100644
--- a/compiler/utils/x86/assembler_x86_test.cc
+++ b/compiler/utils/x86/assembler_x86_test.cc
@@ -965,6 +965,11 @@
   DriverStr(RepeatFF(&x86::X86Assembler::pmaddwd, "pmaddwd %{reg2}, %{reg1}"), "pmaddwd");
 }
 
+TEST_F(AssemblerX86AVXTest, VPMAddWD) {
+  DriverStr(
+      RepeatFFF(&x86::X86Assembler::vpmaddwd, "vpmaddwd %{reg3}, %{reg2}, %{reg1}"), "vpmaddwd");
+}
+
 TEST_F(AssemblerX86Test, PHAddW) {
   DriverStr(RepeatFF(&x86::X86Assembler::phaddw, "phaddw %{reg2}, %{reg1}"), "phaddw");
 }