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 group of people on horses in a field'. Remove all words of length '2' in the given sentence.
Example Output: a group people horses a field

Example Input: Sentence: 'a large brick building with a tree in front'. Remove all words of length '4' in the given sentence.
Example Output: a large brick building a in front

Example Input: Sentence: 'a baby with black hair laying in a green blanket next to a teddy bear'. Remove all words of length '5' in the given sentence.
Example Output:
a baby with hair laying in a blanket next to a bear