revert https://reviews.llvm.org/D22393

It is breaking build 32-bit build bots.



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@275816 91177308-0d34-0410-b5e6-96231b3b80d8

Author: bergeret

lib/sanitizer_common/sanitizer_win.cc

@@ -735,8 +735,6 @@ void BufferedStackTrace::SlowUnwindStackWithContext(uptr pc, void *context,
   STACKFRAME64 stack_frame;
   memset(&stack_frame, 0, sizeof(stack_frame));
 
-  InitializeDbgHelpIfNeeded();
-
   size = 0;
 #if defined(_WIN64)
   int machine_type = IMAGE_FILE_MACHINE_AMD64;