Simplify target construction.

llvm-svn: 30070
diff --git a/llvm/lib/Target/IA64/IA64TargetMachine.cpp b/llvm/lib/Target/IA64/IA64TargetMachine.cpp
index ca7df27..c512ce6 100644
--- a/llvm/lib/Target/IA64/IA64TargetMachine.cpp
+++ b/llvm/lib/Target/IA64/IA64TargetMachine.cpp
@@ -71,7 +71,7 @@
 /// IA64TargetMachine ctor - Create an LP64 architecture model
 ///
 IA64TargetMachine::IA64TargetMachine(const Module &M, const std::string &FS)
-  : TargetMachine("IA64"), DataLayout("e"),
+  : DataLayout("e"),
     FrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0),
     TLInfo(*this) { // FIXME? check this stuff
 }