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 black cat sitting on top of a pot for a plant'. Remove all words of length '7' in the given sentence.
Example Output: a black cat on top of a pot for a plant

Example Input: Sentence: 'a female tennis player hits a unseen ball on coart'. Remove all words of length '2' in the given sentence.
Example Output: a female tennis player hits a unseen ball coart

Example Input: Sentence: 'a picture of zebras eating out of a troth'. Remove all words of length '1' in the given sentence.
Example Output:
picture of zebras eating out of troth