Revert my previous patch to make the valgrind bots happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index fadc594..79622e8 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -253,9 +253,8 @@
 
 //===----------------------------------------------------------------------===//
 
-MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI,
-                                     const TargetAsmInfo *TAI)
-: ImmutablePass(ID), Context(MAI, TAI),
+MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI)
+: ImmutablePass(ID), Context(MAI),
   ObjFileMMI(0),
   CurCallSite(0), CallsEHReturn(0), CallsUnwindInit(0), DbgInfoAvailable(false),
   CallsExternalVAFunctionWithFloatingPointArguments(false) {
@@ -267,7 +266,7 @@
 }
 
 MachineModuleInfo::MachineModuleInfo()
-: ImmutablePass(ID), Context(*(MCAsmInfo*)0, NULL) {
+: ImmutablePass(ID), Context(*(MCAsmInfo*)0) {
   assert(0 && "This MachineModuleInfo constructor should never be called, MMI "
          "should always be explicitly constructed by LLVMTargetMachine");
   abort();