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: 'two older men are playing with a frisbee at the park'. Remove all words of length '4' in the given sentence.
Example Output: two older men are playing a frisbee at the

Example Input: Sentence: 'a woman flying a kite in a residential area'. Remove all words of length '11' in the given sentence.
Example Output: a woman flying a kite in a area

Example Input: Sentence: 'a group of people at a table in a room'. Remove all words of length '6' in the given sentence.
Example Output:
a group of at a table in a room