linux-phytec-fsl

mwifiex: debugfs: remove redunant check of mwifiex_dfs_dir

debugfs_remove already check mwifiex_dfs_dir, so remove it.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>