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 white bus passing by a stone building'. Remove all words of length '3' in the given sentence.
Example Output: a white passing by a stone building

Example Input: Sentence: 'black and white cows sit in a pile of hay'. Remove all words of length '3' in the given sentence.
Example Output: black white cows in a pile of

Example Input: Sentence: 'a little girl that is playing the wii'. Remove all words of length '4' in the given sentence.
Example Output:
a little is playing the wii