Stop exporting NDK prebuilt modules to Make

Make isn't going to use any of these anytime soon. So hide them from
make for now, and be sure to save the AndroidMk shared library
dependencies before we convert them to NDK dependencies.

And $(ACP) is no longer used by $(copy-file-to-target)

Change-Id: I8f8f7d0177d31ba4206c0bc1f2ff952dce53b6b4
diff --git a/cc/androidmk.go b/cc/androidmk.go
index 95250a6..5495e20 100644
--- a/cc/androidmk.go
+++ b/cc/androidmk.go
@@ -106,7 +106,7 @@
 	ret.Custom = func(w io.Writer, name, prefix string) error {
 		out := ret.OutputFile.Path()
 
-		fmt.Fprintln(w, "\n$("+prefix+"OUT_INTERMEDIATE_LIBRARIES)/"+name+objectExtension+":", out.String(), "| $(ACP)")
+		fmt.Fprintln(w, "\n$("+prefix+"OUT_INTERMEDIATE_LIBRARIES)/"+name+objectExtension+":", out.String())
 		fmt.Fprintln(w, "\t$(copy-file-to-target)")
 
 		return nil