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 person throwing a frisbee in a field of grass and straw'. Remove all words of length '6' in the given sentence.
Example Output: a throwing a frisbee in a field of grass and straw

Example Input: Sentence: 'an egg sandwich sitting on top of a white plate'. Remove all words of length '1' in the given sentence.
Example Output: an egg sandwich sitting on top of white plate

Example Input: Sentence: 'a cow standing in a barn with a strange circle on its side'. Remove all words of length '6' in the given sentence.
Example Output:
a cow standing in a barn with a strange on its side