Remove Android Work Chrome code.

sql/connection.h

Index: sql/connection.h
diff --git a/sql/connection.h b/sql/connection.h
index cebf93b1300c3cbd13ae5a6ac9d92aa3a6c4d6e5..8e8931f2e67d0dbc576987830015fa108b3797e4 100644
--- a/sql/connection.h
+++ b/sql/connection.h
@@ -149,12 +149,9 @@ class SQL_EXPORT Connection {
   // other platforms.
   void set_restrict_to_user() { restrict_to_user_ = true; }
 
-  // Call to opt out of memory-mapped file I/O on per connection basis.
+  // Call to opt out of memory-mapped file I/O.
   void set_mmap_disabled() { mmap_disabled_ = true; }
 
-  // Call to opt out of memory-mapped file I/O on all connections.
-  static void set_mmap_disabled_by_default();
-
   // Set an error-handling callback.  On errors, the error number (and
   // statement, if available) will be passed to the callback.
   //