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: 'there is an old silver car parked at a hydrant'. Remove all words of length '5' in the given sentence.
Example Output: is an old silver car parked at a hydrant

Example Input: Sentence: 'a toddler in his underwear stands in front of a sink'. Remove all words of length '2' in the given sentence.
Example Output:
a toddler his underwear stands front a sink