Roll-back r250822.

Summary: It breaks the build for the ASTMatchers

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D13893

llvm-svn: 250827
diff --git a/clang/lib/Basic/TargetInfo.cpp b/clang/lib/Basic/TargetInfo.cpp
index 6cde57d..21368f8 100644
--- a/clang/lib/Basic/TargetInfo.cpp
+++ b/clang/lib/Basic/TargetInfo.cpp
@@ -100,7 +100,7 @@
 }
 
 // Out of line virtual dtor for TargetInfo.
-TargetInfo::~TargetInfo() = default;
+TargetInfo::~TargetInfo() {}
 
 /// getTypeName - Return the user string for the specified integer type enum.
 /// For example, SignedShort -> "short".