chromeos: Removed enable magnifier from palette delegate.

ash/mus/bridge/wm_shell_mus.cc

Index: ash/mus/bridge/wm_shell_mus.cc
diff --git a/ash/mus/bridge/wm_shell_mus.cc b/ash/mus/bridge/wm_shell_mus.cc
index ca58c14203786330215a5d4f1997ae352226815f..4729f4326f7de410f1e1f60f81d2b8e254294d74 100644
--- a/ash/mus/bridge/wm_shell_mus.cc
+++ b/ash/mus/bridge/wm_shell_mus.cc
@@ -407,6 +407,10 @@ void WmShellMus::SetLaserPointerEnabled(bool enabled) {
   NOTIMPLEMENTED();
 }
 
+void WmShellMus::SetPartialMagnifierEnabled(bool enabled) {
+  NOTIMPLEMENTED();
+}
+
 void WmShellMus::CreatePointerWatcherAdapter() {
   // Only needed in WmShellAura, which has specific creation order.
 }