mmc: core: remove duplicate code in mmc_rescan

If the card is removed, the wakelock has to be held for
an extended period of time to enable the user-space to
respond. The code to extend the wakelock has been
duplicated. This patch removes this duplicate code.

Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
msm: acpuclock-krait: Remove unused ua_core calculation

ua_core data are not provided.
So, remove unused calculations.

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>