mmc: msm_sdcc: remove CONFIG_MMC_MSM_SDIO_SUPPORT featurization

CONFIG_MMC_MSM_SDIO_SUPPORT config option was added
to indicate that host controller is capable of detecting
SDIO operational interrupt. But all the current SDCC
HW revisions support the SDIO operational interrupt
detection, this config option is going to be removed.
So this patch removes any code featurization using this
config.

Change-Id: I9768b5b8e089d4b1e57c09d6b364de6daf32e54d
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>