wlcore: Remove redundant check on unsigned variable
wlcore: Remove redundant check on unsigned variable

No need to check whether unsigned variable is less than 0.

CC: Luciano Coelho <d1ef580865f8eb2e1d1c65bc406aba322cc98f3e@ti.com>
CC: f74286e6560323ac86a4fee75575f04dd9aa6ad3@vger.kernel.org
CC: 1099b3bee480025a15c1b622ecdea77a1d6d7166@vger.kernel.org
Signed-off-by: Tushar Behera <23164e61763db67ca52e6268847d2536aec6eaa9@linaro.org>
Signed-off-by: Luciano Coelho <a05bd890c4868ea1807f8564055d1fba77c6ba81@coelho.fi>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs