Update 200-Number-of-Islands.py

This queue is not used in the recursive dfs function. Probably a remnant from the bfs solution shown on the youtube video.

Author: callofktulu

200-Number-of-Islands.py

@@ -4,7 +4,6 @@ def numIslands(self, grid: List[List[str]]) -> int:
             return 0
 
         islands = 0
-        q = collections.deque()
         visit = set()
         rows, cols = len(grid), len(grid[0])