Remove FileSystemHandle.copyTo() #52
Description
FileSystemHandle.copyTo() can be implemented on top of getFile() / getDirectory() / createWriter() / write(), so it is not a new capability. A general-purpose implementation is non-trivial when considering recursively copying directories, attempting to restore the previous state on failures, and edge cases like symlinks and special files.
I think this method does not carry its weight in terms of capabilities added vs implementation effort required from browser developers, and I propose that we remove it for now.