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 man is riding a motorcycle down the street'. Remove all words of length '3' in the given sentence.
Example Output: a is riding a motorcycle down street

Example Input: Sentence: 'the lady is taking a picture while holding water'. Remove all words of length '4' in the given sentence.
Example Output: the is taking a picture while holding water

Example Input: Sentence: 'a man and a small child fly a kite in a field'. Remove all words of length '4' in the given sentence.
Example Output:
a man and a small child fly a in a field