[Material][Mac] Removed "single color while editing text" behavior

chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm

Index: chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
diff --git a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
index 6ebdfc7968ac0f38ea0d1480e5695011b5adc577..8e0ac1494efb3cedaf9ea95f6e4dd36236d5c298 100644
--- a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
+++ b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
@@ -581,15 +581,6 @@ void OmniboxViewMac::ApplyTextAttributes(
                            value:@"en_US_POSIX"
                            range:as_entire_string];
 
-  // Under Material Design, force the text to be a single color white editing.
-  if (ui::MaterialDesignController::IsModeMaterial() &&
-      [field_ currentEditor]) {
-    [attributedString addAttribute:NSForegroundColorAttributeName
-                             value:HostTextColor(in_dark_mode)
-                             range:as_entire_string];
-    return;
-  }
-
   url::Component scheme, host;
   AutocompleteInput::ParseForEmphasizeComponents(
       display_text, ChromeAutocompleteSchemeClassifier(profile_), &scheme,