diff --git a/apex/key.go b/apex/key.go
index 7e98d2b..6d1032d 100644
--- a/apex/key.go
+++ b/apex/key.go
@@ -19,6 +19,7 @@
 	"io"
 
 	"android/soong/android"
+
 	"github.com/google/blueprint/proptools"
 )
 
@@ -61,9 +62,6 @@
 	return m.properties.Installable == nil || proptools.Bool(m.properties.Installable)
 }
 
-func (m *apexKey) DepsMutator(ctx android.BottomUpMutatorContext) {
-}
-
 func (m *apexKey) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	if ctx.Config().FlattenApex() && !ctx.Config().UnbundledBuild() {
 		// Flattened APEXes are not signed