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 people eating at a table and many people are watching them'. Remove all words of length '2' in the given sentence.
Example Output: two people eating a table and many people are watching them

Example Input: Sentence: 'motorcycles parked together in front of a garden'. Remove all words of length '11' in the given sentence.
Example Output: parked together in front of a garden

Example Input: Sentence: 'that flight director looks like he could be waiting for the plane to take off'. Remove all words of length '2' in the given sentence.
Example Output:
that flight director looks like could waiting for the plane take off