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 large elephant and a small elephant standing in water'. Remove all words of length '1' in the given sentence.
Example Output: large elephant and small elephant standing in water

Example Input: Sentence: 'a small boy sitting on the grass with a suitcase'. Remove all words of length '4' in the given sentence.
Example Output: a small boy sitting on the grass a suitcase

Example Input: Sentence: 'a skateboarder riding his skateboard on the street'. Remove all words of length '1' in the given sentence.
Example Output:
skateboarder riding his skateboard on the street