icnss: Remove WARN_ON during self recovery trigger

Remove WARN_ON during self recovery trigger to avoid
false positive while doing stress testing of self
recovery feature.

CRs-Fixed: 2296234
Change-Id: Ibe858f74ccb78565c98ba249a244f6bceb0ca1e5
Signed-off-by: Hardik Kantilal Patel <hkpatel@codeaurora.org>