Fixed obsolete comment.

Bug:32906084
Test: not needed
Change-Id: I0c79e4ffb66405a30d3c83d2e7654cbef413f6e1
diff --git a/packages/Shell/src/com/android/shell/BugreportReceiver.java b/packages/Shell/src/com/android/shell/BugreportReceiver.java
index f6e558f..15ce90f 100644
--- a/packages/Shell/src/com/android/shell/BugreportReceiver.java
+++ b/packages/Shell/src/com/android/shell/BugreportReceiver.java
@@ -40,8 +40,7 @@
     private static final String TAG = "BugreportReceiver";
 
     /**
-     * Always keep the newest 8 bugreport files; 4 reports and 4 screenshots are
-     * roughly 17MB of disk space.
+     * Always keep the newest 8 bugreport files.
      */
     private static final int MIN_KEEP_COUNT = 8;