[gn build] Port 66e5678fece3

GitOrigin-RevId: 3a458256ee22a0e7c31529de42fa6caa263d88fe
diff --git a/utils/gn/secondary/llvm/lib/DWARFLinkerParallel/BUILD.gn b/utils/gn/secondary/llvm/lib/DWARFLinkerParallel/BUILD.gn
index 23df902..62dcb89 100644
--- a/utils/gn/secondary/llvm/lib/DWARFLinkerParallel/BUILD.gn
+++ b/utils/gn/secondary/llvm/lib/DWARFLinkerParallel/BUILD.gn
@@ -10,10 +10,7 @@
     "//llvm/lib/Support",
   ]
   sources = [
-    "DWARFEmitterImpl.cpp",
     "DWARFLinker.cpp",
-    "DWARFLinkerImpl.cpp",
-    "OutputSections.cpp",
     "StringPool.cpp",
   ]
 }