After discussing with Chris Lattner, we require C++11, so lets get rid of the macros and just use C++11.

llvm-svn: 179805
diff --git a/lldb/source/Target/LanguageRuntime.cpp b/lldb/source/Target/LanguageRuntime.cpp
index d3d3fe1..d2f586a 100644
--- a/lldb/source/Target/LanguageRuntime.cpp
+++ b/lldb/source/Target/LanguageRuntime.cpp
@@ -228,7 +228,7 @@
 LanguageRuntime*
 LanguageRuntime::FindPlugin (Process *process, lldb::LanguageType language)
 {
-    STD_UNIQUE_PTR(LanguageRuntime) language_runtime_ap;
+    std::unique_ptr<LanguageRuntime> language_runtime_ap;
     LanguageRuntimeCreateInstance create_callback;
 
     for (uint32_t idx = 0;