Accounts in NoteDb: Remove duplicate link to slides

Change-Id: Iae86463fd0e4e69468b74592d5d5ca26e534837f
Signed-off-by: Edwin Kempin <ekempin@google.com>

sessions/accounts-in-notedb.md

diff --git a/sessions/accounts-in-notedb.md b/sessions/accounts-in-notedb.md
index 01766bc..001fd57 100644
--- a/sessions/accounts-in-notedb.md
+++ b/sessions/accounts-in-notedb.md
@@ -4,8 +4,6 @@
 Git repositories. This migration also includes the Gerrit accounts. This talk
 will discuss how the accounts will be stored in Git.
 
-[Slides (PDF)](https://storage.googleapis.com/gerrit-talks/summit/2016/accounts-in-notedb.pdf)
-
 *Edwin Kempin, Google*
 
 [slides](https://storage.googleapis.com/gerrit-talks/summit/2016/accounts-in-notedb.pdf)