Revert "Truncate vendor snapshot header glob list after filtering it"

This reverts commit 3a62a9cc2bc113b77eda1e95f470dbcd2ff060ca.

Reason for revert:  causing extra soong regenerations

Change-Id: I4ceb5334634613a00ac9c312b75c623a8aced8ab
diff --git a/cc/library.go b/cc/library.go
index 29a3c69..73ed969 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -481,7 +481,6 @@
 			}
 			j++
 		}
-		glob = glob[:j]
 	}
 
 	// Collect generated headers