mmc: core: Remove duplicated definition of mmc_send_ext_csd()
mmc: core: Remove duplicated definition of mmc_send_ext_csd()

mmc_send_ext_csd() is an exported function used by both the mmc core
and the mmc block layer. Let's remove the local duplicated definition
in the mmc core.

Signed-off-by: Ulf Hansson <fe47b31f388f85ce6ddf64bf3a0cf6b46077d0e6@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs