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 girl with sunglasses looking at her phone'. Remove all words of length '3' in the given sentence.
Example Output: a girl with sunglasses looking at phone

Example Input: Sentence: 'a laptop computer is sitting on top of a desk'. Remove all words of length '2' in the given sentence.
Example Output: a laptop computer sitting top a desk

Example Input: Sentence: 'a bunch of doughnuts are in a display case'. Remove all words of length '4' in the given sentence.
Example Output:
a bunch of doughnuts are in a display