Tweak some wording to remove redundant information.

Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>

diff --git a/Documentation/process/maintainer-pgp-guide.rst b/Documentation/process/maintainer-pgp-guide.rst
index 27c42762edd7..40bfbd3b7648 100644
--- a/Documentation/process/maintainer-pgp-guide.rst
+++ b/Documentation/process/maintainer-pgp-guide.rst
@@ -266,9 +266,7 @@ home, such as your bank vault.
     Your printer is probably no longer a simple dumb device connected to
     your parallel port, but since the output is still encrypted with
     your passphrase, printing out even to "cloud-integrated" modern
-    printers should remain a relatively safe operation. One option is to
-    change the passphrase on your master key immediately after you are
-    done with paperkey.
+    printers should remain a relatively safe operation.
 
 Back up your whole GnuPG directory
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-- 
b4 0.10.0-dev-fe10a