Merge pull request #28373 from apple/revert-28284-SR-11765-pretty-stack-trace

Revert "[FrontEnd] Pretty stack trace indicating running user code"

Author: shahmishal

lib/FrontendTool/FrontendTool.cpp

@@ -1337,12 +1337,6 @@ static bool processCommandLineAndRunImmediately(CompilerInvocation &Invocation,
       ProcessCmdLine(opts.ImmediateArgv.begin(), opts.ImmediateArgv.end());
   Instance.setSILModule(std::move(SM));
 
-
-  PrettyStackTraceStringAction trace(
-      "running user code",
-      MSF.is<SourceFile *>() ? MSF.get<SourceFile *>()->getFilename()
-                     : MSF.get<ModuleDecl *>()->getModuleFilename());
-
   ReturnValue =
       RunImmediately(Instance, CmdLine, IRGenOpts, Invocation.getSILOptions());
   return Instance.getASTContext().hadError();