Revert "unique_ptr-ify ownership of ASTConsumers"

This reverts commit r213308.

Reverting to have some on-list discussion/confirmation about the ongoing
direction of smart pointer usage in the LLVM project.

llvm-svn: 213324
diff --git a/clang-tools-extra/modularize/Modularize.cpp b/clang-tools-extra/modularize/Modularize.cpp
index 730e62f..db67754 100644
--- a/clang-tools-extra/modularize/Modularize.cpp
+++ b/clang-tools-extra/modularize/Modularize.cpp
@@ -652,10 +652,10 @@
         HadErrors(HadErrors) {}
 
 protected:
-  std::unique_ptr<clang::ASTConsumer>
-  CreateASTConsumer(CompilerInstance &CI, StringRef InFile) override {
-    return llvm::make_unique<CollectEntitiesConsumer>(
-        Entities, PPTracker, CI.getPreprocessor(), InFile, HadErrors);
+  virtual clang::ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
+                                                StringRef InFile) {
+    return new CollectEntitiesConsumer(Entities, PPTracker,
+                                       CI.getPreprocessor(), InFile, HadErrors);
   }
 
 private: