Revert earlier unnecessary hack.  Make sure we correctly force on 64bit and cmov for 64-bit targets.

llvm-svn: 134768
diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
index 4bddce4..728246f 100644
--- a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
+++ b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
@@ -35,7 +35,7 @@
 std::string X86_MC::ParseX86Triple(StringRef TT) {
   Triple TheTriple(TT);
   if (TheTriple.getArch() == Triple::x86_64)
-    return "+64bit-mode,+64bit,+sse2";
+    return "+64bit-mode";
   return "-64bit-mode";
 }