[NFC] remove obsolete comment

LLVM_ALIGNAS was removed from this class in http://llvm.org/r338099 but the comment was left there. The class is still sommewhat relevant despite the comment, let's keep it there with its one use.

llvm-svn: 367336

diff --git a/llvm/include/llvm/Support/TrailingObjects.h b/llvm/include/llvm/Support/TrailingObjects.h
index 8b5daef..ddcdda5 100644 (file)
--- a/llvm/include/llvm/Support/TrailingObjects.h
+++ b/llvm/include/llvm/Support/TrailingObjects.h
@@ -87,11 +87,6 @@ protected:
   template <typename T> struct OverloadToken {};
 };
 
-/// This helper template works-around MSVC 2013's lack of useful
-/// alignas() support. The argument to alignas(), in MSVC, is
-/// required to be a literal integer. But, you *can* use template
-/// specialization to select between a bunch of different alignas()
-/// expressions...
 template <int Align>
 class TrailingObjectsAligner : public TrailingObjectsBase {};
 template <>