Revert^3 "rust: Only allow bindgen to produce `rlib`s."

9cc801ab7af27684c190645f6fd0f9db8f798e15

Change-Id: Ib59840b51b316c0ad03bc66565814dd96be0b072
diff --git a/rust/source_provider.go b/rust/source_provider.go
index 4f8d22b..7719611 100644
--- a/rust/source_provider.go
+++ b/rust/source_provider.go
@@ -65,12 +65,9 @@
 	}
 }
 
-func NewSourceProviderModule(hod android.HostOrDeviceSupported, sourceProvider SourceProvider, enableLints bool, rlibOnly bool) *Module {
+func NewSourceProviderModule(hod android.HostOrDeviceSupported, sourceProvider SourceProvider, enableLints bool) *Module {
 	_, library := NewRustLibrary(hod)
 	library.BuildOnlyRust()
-	if rlibOnly {
-		library.BuildOnlyRlib()
-	}
 	library.sourceProvider = sourceProvider
 
 	module := newModule(hod, android.MultilibBoth)