drivers/misc: ti-st: remove redundant assignment to variables i and flags

The variables i and flags are being initialized with values that are
never read.  The initializations are redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20200113123149.187555-1-colin.king@canonical.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>