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: 'remodeled model t with modern modifications and surf board'. Remove all words of length '13' in the given sentence.
Example Output: remodeled model t with modern and surf board

Example Input: Sentence: 'a couple of giraffe standing next to a small wooden tree'. Remove all words of length '6' in the given sentence.
Example Output: a of giraffe standing next to a small tree

Example Input: Sentence: 'a bird on a tree branch with its beak opened'. Remove all words of length '1' in the given sentence.
Example Output:
bird on tree branch with its beak opened