Subzero: Move to C++11 static_assert().

src/IceDefs.h

Index: src/IceDefs.h
diff --git a/src/IceDefs.h b/src/IceDefs.h
index 68f30c7309365507d040133055193e23317abf69..56f0bcc364a2d925e227bce9047e94b0f8d7ad8c 100644
--- a/src/IceDefs.h
+++ b/src/IceDefs.h
@@ -33,16 +33,9 @@
 #include "llvm/ADT/SmallBitVector.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/Casting.h"
-#include "llvm/Support/Compiler.h" // LLVM_STATIC_ASSERT
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/Timer.h"
 
-// Roll our own static_assert<> in the absence of C++11.  TODO: change
-// to static_assert<> with C++11.
-template <bool> struct staticAssert;
-template <> struct staticAssert<true> {}; // only true is defined
-#define STATIC_ASSERT(x) staticAssert<(x)>()
-
 namespace Ice {
 
 class Cfg;