Revert^3 "Add seapp_contexts to allowlist of makefile goal"

This reverts commit feb0756d41a83f140deb8eb55996009a80004640.

Reason for revert: redundant now

Change-Id: I6cd43f03a28d03a87d19510a554e3bbe0e69b1de
diff --git a/android/neverallow_test.go b/android/neverallow_test.go
index edda244..35aadd8 100644
--- a/android/neverallow_test.go
+++ b/android/neverallow_test.go
@@ -293,7 +293,7 @@
 			`),
 		},
 		expectedErrors: []string{
-			"Only boot images and seapp contexts may be imported as a makefile goal.",
+			"Only boot images may be imported as a makefile goal.",
 		},
 	},
 }