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: 'it is a postcard like view of snowlaced mountains green lowlands picturesque buildings on a receding incline and boats in a harbor in the frontmost part'. Remove all words of length '6' in the given sentence.