Remove Debug log

[imairi]

Run SwiftLeakCheck (version 1.3.0) for the target path, the below results are displayed.

Scan file:///path/to/swift/file
Finished in 0.011775970458984375 seconds
  `self` is strongly captured at (line: 290, column: 13)"),
  from a potentially escaped closure.
Scan file:///path/to/swift/file
Debug:

   ... some codes ...

It is no need to display for result.

[namanhams]

Ah yes. I forgot to remove this. Thanks !

[namanhams]

Somehow i can't merge pull request here. Let me get back to this later.

[imairi]

Only those with write access to this repository can merge pull requests.

It may be access authorization problem. I hope it will go well. Thanks for your review.