Your question is far too general. The answer could very well be
davido's solution if your intent is only to remove the litteral unwanted string, or it could be more complex if what you want to remove can take other values. Si you should decribe as precisely as possible the characteristics of what you want to remove (and/or what you want to keep) from the original string. A single example is almost never sufficient to describe what a regex should do, you need to give clear rules to explain what needs to ke kept and what should be remoived.
