Remove unicode from string

[Keith Power]

I have an alert that sometimes adds a bell icon to the string. I want to remove the icon before I process the string. The string displays in MT4 as "?? This is the alert" When I view the raw text in a different editor it reads as "\ud83d\udd14 This is the alert info" 

I have tried 

int replaceBell = StringReplace(result[1],"\ud83d\udd14","");

Is there a way to clear the bell icon, it wont always be there so I am trying to get something a little flexible