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 giraffe comes close to a visitor in its enclosure'. Remove all words of length '1' in the given sentence.
Example Output: giraffe comes close to visitor in its enclosure

Example Input: Sentence: 'a woman is listening to her mobile device'. Remove all words of length '6' in the given sentence.
Example Output: a woman is listening to her

Example Input: Sentence: 'a group of children playing a game of soccer'. Remove all words of length '2' in the given sentence.
Example Output:
a group children playing a game soccer