linux_spi.c: Drop some unnecessary initialisations and checks

In previous patches 52283, 52284, 52285 there were some unresolved
comments left, resolving [and replying to] all of that here.

TEST=builds and ninja test from 51487

Change-Id: I27a718b515fc474f63b3e61be58a6f9302527559
Signed-off-by: Anastasia Klimchuk <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Angel Pons <>
Reviewed-by: Nico Huber <>
1 file changed