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: 'the three giraffes are standing on the grassland'. Remove all words of length '2' in the given sentence.
Example Output: the three giraffes are standing the grassland

Example Input: Sentence: 'a gnome with a bunch of carrots and a shovel'. Remove all words of length '3' in the given sentence.
Example Output: a gnome with a bunch of carrots a shovel

Example Input: Sentence: 'a dell laptop sits on a restaurant table'. Remove all words of length '6' in the given sentence.
Example Output:
a dell sits on a restaurant table