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 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: 'several giraffe on a dirt surface surrounded by vegetation'. Remove all words of length '2' in the given sentence.
Example Output: several giraffe a dirt surface surrounded vegetation

Example Input: Sentence: 'two mirrors in a bathroom with two sinks'. Remove all words of length '1' in the given sentence.
Example Output:
two mirrors in bathroom with two sinks