Removes #ash-enable-sticky-edges flag

ash/ash_switches.cc

Index: ash/ash_switches.cc
diff --git a/ash/ash_switches.cc b/ash/ash_switches.cc
index 12413446f0e3577989c3666cdf1b1e6df85c615c..eb199ce8533f2a15df9e5f16beb81441d45f1fb8 100644
--- a/ash/ash_switches.cc
+++ b/ash/ash_switches.cc
@@ -133,9 +133,6 @@ const char kAshEnableOak[] = "ash-enable-oak";
 // Enables software based mirroring.
 const char kAshEnableSoftwareMirroring[] = "ash-enable-software-mirroring";
 
-// Enables "sticky" edges instead of "snap-to-edge"
-const char kAshEnableStickyEdges[] = "ash-enable-sticky-edges";
-
 // When this flag is set, system sounds will be played whether the
 // ChromeVox is enabled or not.
 const char kAshEnableSystemSounds[] = "ash-enable-system-sounds";