Remove orphaned setting FSUseV1TagColor

indra/newview/app_settings/settings.xml

@@ -255,17 +255,6 @@
     <key>Value</key>
     <integer>0</integer>
   </map>
-  <key>FSUseV1TagColor</key>
-  <map>
-    <key>Comment</key>
-    <string>If Client tags should be colored</string>
-    <key>Persist</key>
-    <integer>1</integer>
-    <key>Type</key>
-    <string>Boolean</string>
-    <key>Value</key>
-    <integer>0</integer>
-  </map>
   <key>FSNameTagShowLegacyUsernames</key>
   <map>
     <key>Comment</key>

indra/newview/llvoavatar.cpp

@@ -3493,8 +3493,6 @@ void LLVOAvatar::idleUpdateNameTagAlpha(BOOL new_name, F32 alpha)
 LLColor4 LLVOAvatar::getNameTagColor()
 // </FS:CR>
 {
-	static LLUICachedControl<bool> use_old_color("FSUseV1TagColor", false);
-	
 	// ...not using display names
 	LLColor4 color = LLUIColorTable::getInstance()->getColor("NameTagLegacy");
 	if (LLAvatarName::useDisplayNames())