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 number of benches at the beach and a boat in the sea'. Remove all words of length '7' in the given sentence.
Example Output: a number of at the beach and a boat in the sea

Example Input: Sentence: 'two giraffes standing next to each other next to trees'. Remove all words of length '4' in the given sentence.
Example Output: two giraffes standing to other to trees

Example Input: Sentence: 'a plate with an omelet asparagus and an orange slice'. Remove all words of length '5' in the given sentence.
Example Output:
a with an omelet asparagus and an orange