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: 'lion gargoyle statute in front of clock tower'. Remove all words of length '4' in the given sentence.
Example Output: gargoyle statute in front of clock tower

Example Input: Sentence: 'a person on a court with a tennis racket'. Remove all words of length '6' in the given sentence.
Example Output: a on a court with a

Example Input: Sentence: 'a red and blue fire hydrant is sitting next to flowers'. Remove all words of length '2' in the given sentence.
Example Output:
a red and blue fire hydrant sitting next flowers