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 bunch of birds that are on ledge'. Remove all words of length '5' in the given sentence.
Example Output: a of that are on

Example Input: Sentence: 'the boat makes a big splash in the water'. Remove all words of length '4' in the given sentence.
Example Output: the makes a big splash in the water

Example Input: Sentence: 'a hot drink is next to a slice of pie'. Remove all words of length '2' in the given sentence.
Example Output:
a hot drink next a slice pie