Revert^2 "Add ability to declare licenses in soong."

df98d3e4a546a3a3e5e6aba5ca6151d00547ef20

Change-Id: Ie7e1695ecb8cd943124426a0cad2c0d1db2b46ed
diff --git a/android/Android.bp b/android/Android.bp
index f8c1d55..69aa037 100644
--- a/android/Android.bp
+++ b/android/Android.bp
@@ -30,6 +30,9 @@
         "filegroup.go",
         "hooks.go",
         "image.go",
+        "license.go",
+        "license_kind.go",
+        "licenses.go",
         "makefile_goal.go",
         "makevars.go",
         "metrics.go",
@@ -77,6 +80,9 @@
         "depset_test.go",
         "deptag_test.go",
         "expand_test.go",
+        "license_kind_test.go",
+        "license_test.go",
+        "licenses_test.go",
         "module_test.go",
         "mutator_test.go",
         "namespace_test.go",