Create a function which takes in a sentence str and a string of characters chars and return the sentence but with all the specified characters removed.
stripSentence("the quick brown fox jumps over the lazy dog", "aeiou") ➞ "th qck brwn fx jmps vr th lzy dg"
stripSentence("the hissing snakes sinisterly slither across the rustling leaves", "s") ➞ "the hiing nake initerly lither acro the rutling leave"
stripSentence("gone, reduced to atoms", "go, muscat nerd") ➞ ""