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 light that is above a mirror near a sink'. Remove all words of length '6' in the given sentence.
Example Output: a light that is above a near a sink

Example Input: Sentence: 'young boys sitting at table enjoying lunch on deck'. Remove all words of length '5' in the given sentence.
Example Output: boys sitting at enjoying on deck

Example Input: Sentence: 'an airplane flying across the clear blue sky'. Remove all words of length '5' in the given sentence.
Example Output:
an airplane flying across the blue sky