Definition: In this task, you need to remove all words of a given length in the sentence. The number of letters in a word determine its length, for example, the length of the word "apple" is 5.
Input: Sentence: 'the big red bus is riving past the crowd of people on the sidewalk'. Remove all words of length '5' in the given sentence.

the big red bus is riving past the of people on the sidewalk