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: 'an indoor exhibit featuring vintage philadelphia baseball memorabilia'. Remove all words of length '11' in the given sentence.
Example Output: an indoor exhibit featuring vintage philadelphia baseball

Example Input: Sentence: 'someone is holding an iphone or an ipod'. Remove all words of length '2' in the given sentence.
Example Output:
someone holding iphone ipod