diff --git a/src/cmd/link/internal/ld/dwarf.go b/src/cmd/link/internal/ld/dwarf.go
index 3c3f0e5b856..2f19c3eaa2f 100644
--- a/src/cmd/link/internal/ld/dwarf.go
+++ b/src/cmd/link/internal/ld/dwarf.go
@@ -2290,12 +2290,6 @@ func getDwsectCUSize(sname string, pkgname string) uint64 {
 	return dwsectCUSize[sname+"."+pkgname]
 }
 
-func saveDwsectCUSize(sname string, pkgname string, size uint64) {
-	dwsectCUSizeMu.Lock()
-	defer dwsectCUSizeMu.Unlock()
-	dwsectCUSize[sname+"."+pkgname] = size
-}
-
 func addDwsectCUSize(sname string, pkgname string, size uint64) {
 	dwsectCUSizeMu.Lock()
 	defer dwsectCUSizeMu.Unlock()