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 couple of airplanes sitting outside of a building'. Remove all words of length '1' in the given sentence.
Example Output: couple of airplanes sitting outside of building

Example Input: Sentence: 'little boy with a large tie holding a stuffed bear'. Remove all words of length '4' in the given sentence.
Example Output: little boy a large tie holding a stuffed

Example Input: Sentence: 'a man standing on a stage with a microphone to his mouth'. Remove all words of length '8' in the given sentence.
Example Output:
a man on a stage with a microphone to his mouth