wil6210: remove suspend time statistics

Currently suspend time statistics are showed through debugfs.
Remove time statistics in suspend state since the timing may
not be accurate in that state.

Change-Id: I1f107089c52c81ebb62e863f9b3df435ca7d6dc7
Signed-off-by: Lazar Alexei <qca_ailizaro@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Git-commit: 05898dd98830f62e60faa41a4ec6acecb9d6cdd1
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git


Signed-off-by: Maya Erez <merez@codeaurora.org>