Revert "Do not consider disabled prebuilt variants."

This reverts commit 235e2fdbd3fcde27c432616d3ada8da914bf3f92.

Reason for revert: <build break>

Bug: 161315642
Change-Id: Ie741252dc1d0749591f141c71c3d59ce45f0234f
diff --git a/android/prebuilt.go b/android/prebuilt.go
index 269ad5d..9f4df28 100644
--- a/android/prebuilt.go
+++ b/android/prebuilt.go
@@ -225,7 +225,7 @@
 // PrebuiltSourceDepsMutator adds dependencies to the prebuilt module from the
 // corresponding source module, if one exists for the same variant.
 func PrebuiltSourceDepsMutator(ctx BottomUpMutatorContext) {
-	if m, ok := ctx.Module().(PrebuiltInterface); ok && m.Enabled() && m.Prebuilt() != nil {
+	if m, ok := ctx.Module().(PrebuiltInterface); ok && m.Prebuilt() != nil {
 		p := m.Prebuilt()
 		if !p.properties.PrebuiltRenamedToSource {
 			name := m.base().BaseModuleName()