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 heard of black cows standing and looking at the camera'. Remove all words of length '2' in the given sentence.
Example Output: a heard black cows standing and looking the camera

Example Input: Sentence: 'a player hits the ball during a baseball game'. Remove all words of length '8' in the given sentence.
Example Output: a player hits the ball during a game

Example Input: Sentence: 'a woman in a dress has a white dog on a leash on a city street'. Remove all words of length '6' in the given sentence.
Example Output:
a woman in a dress has a white dog on a leash on a city