iwlwifi: mvm: don't check if CSA event is running before removing

iwlwifi: mvm: don't check if CSA event is running before removing

[ Upstream commit b8a86164454aa745ecb534d7477d50d440ea05b6 ]

We may want to remove it before it started (i.e. before the
actual switch time).

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Fixes: 58ddd9b6d194 ("iwlwifi: mvm: don't send a CSA command the firmware doesn't know")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.835db8987b8a.Ic6c5d28d744302db1bc6c4314bd3138ba472f834@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>