Remove dead code SavePasswordsPreferences#onPreferenceChange

SavePasswordsPreferences never registers itself as an
OnPreferenceChangeListener so its onPreferenceChange method never gets
called. This CL removes that dead code.

Note that OnPreferenceChangeListener is still used in-line, so the
import is not removed.

Bug: 788701
Change-Id: I87ae4f6be3e2dc4322fad56551338b0a8355e062
Reviewed-on: https://chromium-review.googlesource.com/808265
Reviewed-by: Finnur Thorarinsson <finnur@chromium.org>
Commit-Queue: Vaclav Brozek <vabr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#521691}
1 file changed