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 group of young people holding up voting signs along a street'. Remove all words of length '5' in the given sentence.
Example Output: a of people holding up voting a street

Example Input: Sentence: 'there is an old silver car parked at a hydrant'. Remove all words of length '5' in the given sentence.
Example Output: is an old silver car parked at a hydrant

Example Input: Sentence: 'a man going down hill in a ski competition'. Remove all words of length '2' in the given sentence.
Example Output:
a man going down hill a ski competition