mmc: core: Remove non-data R1B ioctl workaround

The workaround of pretending R1B non-data transfers are data transfers in
order for the busy timeout to be respected by the host controller driver is
removed. It wasn't useful in a long time.

Initially the workaround ensured that R1B commands did not time out by
setting the data timeout to be the command timeout in commit cb87ea28ed9e
("mmc: core: Add mmc CMD+ACMD passthrough ioctl"). This was moved inside an
if-clause with idata->buf_bytes being set in commit 4d6144de8ba2 ("mmc:
core: check for zero length ioctl data"). Since the workaround is now
inside the idata->buf_bytes clause and intended to fix R1B non-data
transfers, that do not have buf_bytes set, we can remove the workaround
altogether. This was dead code, since data transfers doesn't use R1B
commands.

Signed-off-by: Christian Loehle <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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