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: 'tourists sit at a park while watching others in canoes'. Remove all words of length '8' in the given sentence.
Example Output: sit at a park while others in canoes

Example Input: Sentence: 'the puppy and kitten are in a field of grass'. Remove all words of length '5' in the given sentence.
Example Output: the and kitten are in a of

Example Input: Sentence: 'a man stands on a tennis court ready to play'. Remove all words of length '6' in the given sentence.
Example Output:
a man on a court ready to play