Revert "Encapsulate PassManager debug flags to avoid static init and cxa_exit."

Working on a better solution to this.

This reverts commit 7d4e9934e7.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190990 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvm-diff/llvm-diff.cpp

@@ -20,7 +20,6 @@
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Type.h"
 #include "llvm/IRReader/IRReader.h"
-#include "llvm/PassManager.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/SourceMgr.h"
@@ -68,9 +67,6 @@ static cl::list<std::string> GlobalsToCompare(cl::Positional,
                                               cl::desc("<globals to compare>"));
 
 int main(int argc, char **argv) {
-  // Initialize PassManager for -time-passes support.
-  initializePassManager();
-
   cl::ParseCommandLineOptions(argc, argv);
 
   LLVMContext Context;