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-nm/llvm-nm.cpp

@@ -22,7 +22,6 @@
 #include "llvm/Object/Archive.h"
 #include "llvm/Object/MachOUniversal.h"
 #include "llvm/Object/ObjectFile.h"
-#include "llvm/PassManager.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Format.h"
@@ -447,10 +446,6 @@ int main(int argc, char **argv) {
   PrettyStackTraceProgram X(argc, argv);
 
   llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
-
-  // Initialize PassManager for -time-passes support.
-  initializePassManager();
-
   cl::ParseCommandLineOptions(argc, argv, "llvm symbol table dumper\n");
 
   // llvm-nm only reads binary files.