Change OwningPtr::take() to OwningPtr::release().

This is a precursor to moving to std::unique_ptr.

llvm-svn: 203275
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 6df7b95..a839b6a 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -6015,5 +6015,5 @@
   if (!Target->handleTargetFeatures(Opts->Features, Diags))
     return 0;
 
-  return Target.take();
+  return Target.release();
 }