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 living area with chair sofa and pictures on wall'. Remove all words of length '6' in the given sentence.
Example Output: a area with chair sofa and pictures on wall

Example Input: Sentence: 'black and white cows sit in a pile of hay'. Remove all words of length '3' in the given sentence.
Example Output: black white cows in a pile of

Example Input: Sentence: 'there is a bright window in the small bathroom'. Remove all words of length '6' in the given sentence.
Example Output:
there is a in the small bathroom