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 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 small pizza is on the pizza pan on the table'. Remove all words of length '5' in the given sentence.
Example Output: a is on the pan on the

Example Input: Sentence: 'a man with a helmet holds a ball'. Remove all words of length '5' in the given sentence.
Example Output:
a man with a helmet a ball