remoteproc: qcom: wcnss: Drop unused smd include

This include isn't used anymore because the smd functions have been
moved to the qcom_common.c file.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210823235120.1203512-1-swboyd@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>