I am not trying to troll anybody, although it might seem like it. Also, this is not intended to be funny or anything. The question I wanted to ask is what do you call the part of a narration/talk/speech/short-paragraph such as this, that is dedicated as sort of disclaimer, preface or something secondary to the main topic. For example, the bolded part of this paragraph.
Example: Your #the-word-i-am-looking-for#* is unnecessary; I wouldn't have taken it as a troll.
Sorry for repeating myself, but this is another example.