diff --git a/src/cmd/go/internal/modload/modfile.go b/src/cmd/go/internal/modload/modfile.go
index 2afa831583..6cbad46c4d 100644
--- a/src/cmd/go/internal/modload/modfile.go
+++ b/src/cmd/go/internal/modload/modfile.go
@@ -29,7 +29,6 @@ import (
 // module-module "all" pattern no longer closes over the dependencies of
 // tests outside of the main module.
 const narrowAllVersionV = "v1.16"
-const go116EnableNarrowAll = true
 
 var modFile *modfile.File
 
@@ -300,9 +299,6 @@ func indexModFile(data []byte, modFile *modfile.File, needsFix bool) *modFileInd
 // (Otherwise — as in Go 1.16+ — the "all" pattern includes only the packages
 // transitively *imported by* the packages and tests in the main module.)
 func (i *modFileIndex) allPatternClosesOverTests() bool {
-	if !go116EnableNarrowAll {
-		return true
-	}
 	if i != nil && semver.Compare(i.goVersionV, narrowAllVersionV) < 0 {
 		// The module explicitly predates the change in "all" for lazy loading, so
 		// continue to use the older interpretation. (If i == nil, we not in any