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: 'an office with file cabinets a keyboard and chairs'. Remove all words of length '4' in the given sentence.
Example Output: an office cabinets a keyboard and chairs

Example Input: Sentence: 'a field of green grass that has five surfboard positioned in a half circle together'. Remove all words of length '9' in the given sentence.
Example Output: a field of green grass that has five positioned in a half circle together

Example Input: Sentence: 'two cows are looking through a fence by a red fire hydrant'. Remove all words of length '7' in the given sentence.
Example Output:
two cows are a fence by a red fire