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 tray filled with lots of fries next to a hot dog'. Remove all words of length '2' in the given sentence.
Example Output: a tray filled with lots fries next a hot dog

Example Input: Sentence: 'three giraffes standing near a stone wall looking beyond'. Remove all words of length '8' in the given sentence.
Example Output: three near a stone wall looking beyond

Example Input: Sentence: 'a commuter train passes people sitting on a bench at a train station'. Remove all words of length '6' in the given sentence.
Example Output:
a commuter train sitting on a bench at a train station