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: 'three giraffes lounging around in a grassy zoo enclosure'. Remove all words of length '2' in the given sentence.
Example Output: three giraffes lounging around a grassy zoo enclosure

Example Input: Sentence: 'a steam clock on the side of the street attracts onlookers'. Remove all words of length '9' in the given sentence.
Example Output: a steam clock on the side of the street attracts

Example Input: Sentence: 'people on a snowy hill with the sun brightly in the background'. Remove all words of length '5' in the given sentence.
Example Output:
people on a hill with the sun brightly in the background