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.

Example Input: Sentence: 'a couple of people sitting and standing next to a white bath tub'. Remove all words of length '3' in the given sentence.
Example Output: a couple of people sitting standing next to a white bath

Example Input: Sentence: 'people sit at tables with their laptops out'. Remove all words of length '3' in the given sentence.
Example Output: people at tables with their laptops

Example Input: Sentence: 'a cow and people riding bikes in a city street'. Remove all words of length '2' in the given sentence.
Example Output:
a cow and people riding bikes a city street