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.

Sentence: 'a man in a suit leaning on a door frame'. Remove all words of length '5' in the given sentence.
a man in a suit leaning on a door

Sentence: 'a toasted sub sandwich is next to a salad'. Remove all words of length '3' in the given sentence.
a toasted sandwich is next to a salad

Sentence: 'a man and an older man pose together with tennis rackets'. Remove all words of length '7' in the given sentence.

a man and an older man pose together with tennis