Themes: Remove unused IDs from ThemeProperties

chrome/browser/themes/theme_properties.h

Index: chrome/browser/themes/theme_properties.h
diff --git a/chrome/browser/themes/theme_properties.h b/chrome/browser/themes/theme_properties.h
index 573d8590abe5bde9a361c405c21396c2ec225941..bc8510721606ffc39efdc9b21b8f61f491eaa57b 100644
--- a/chrome/browser/themes/theme_properties.h
+++ b/chrome/browser/themes/theme_properties.h
@@ -40,12 +40,8 @@ class ThemeProperties {
     COLOR_NTP_BACKGROUND,
     COLOR_NTP_TEXT,
     COLOR_NTP_LINK,
-    COLOR_NTP_LINK_UNDERLINE,
     COLOR_NTP_HEADER,
     COLOR_NTP_SECTION,
-    COLOR_NTP_SECTION_TEXT,
-    COLOR_NTP_SECTION_LINK,
-    COLOR_NTP_SECTION_LINK_UNDERLINE,
     COLOR_BUTTON_BACKGROUND,
 
     TINT_BUTTONS,
@@ -124,10 +120,6 @@ class ThemeProperties {
 
     // These colors don't have constant default values. They are derived from
     // the runtime value of other colors.
-    COLOR_NTP_SECTION_HEADER_TEXT,
-    COLOR_NTP_SECTION_HEADER_TEXT_HOVER,
-    COLOR_NTP_SECTION_HEADER_RULE,
-    COLOR_NTP_SECTION_HEADER_RULE_LIGHT,
     COLOR_NTP_TEXT_LIGHT,
 #if BUILDFLAG(ENABLE_SUPERVISED_USERS)
     COLOR_SUPERVISED_USER_LABEL,