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: 'soccer players playing soccer while a crowd watches in the bleachers'. Remove all words of length '9' in the given sentence.
Example Output: soccer players playing soccer while a crowd watches in the

Example Input: Sentence: 'some people are posing for a picture in the snow mountain'. Remove all words of length '7' in the given sentence.
Example Output: some people are posing for a in the snow mountain

Example Input: Sentence: 'a person in shorts and sandles eating a sandwich'. Remove all words of length '6' in the given sentence.
Example Output:
a in and sandles a sandwich