Instructions: 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.
Input: Sentence: 'barry bonds holding onto a baseball with the number 754 written next to him'. Remove all words of length '6' in the given sentence.
Output:
barry bonds holding onto a baseball with the 754 written next to him