net: remove the caif_hsi driver

The caif_hsi driver relies on a cfhsi_get_ops symbol using symbol_get,
but this symbol is not provided anywhere in the kernel tree.  Remove
this driver given that it is dead code.

Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Christoph Hellwig

drivers/net/caif/Kconfig

@@ -20,15 +20,6 @@ config CAIF_TTY
 	  identified as N_CAIF. When this ldisc is opened from user space
 	  it will redirect the TTY's traffic into the CAIF stack.
 
-config CAIF_HSI
-	tristate "CAIF HSI transport driver"
-	depends on CAIF
-	default n
-	help
-	  The CAIF low level driver for CAIF over HSI.
-	  Be aware that if you enable this then you also need to
-	  enable a low-level HSI driver.
-
 config CAIF_VIRTIO
 	tristate "CAIF virtio transport driver"
 	depends on CAIF && HAS_DMA

drivers/net/caif/Makefile

@@ -4,8 +4,5 @@ ccflags-$(CONFIG_CAIF_DEBUG) := -DDEBUG
 # Serial interface
 obj-$(CONFIG_CAIF_TTY) += caif_serial.o
 
-# HSI interface
-obj-$(CONFIG_CAIF_HSI) += caif_hsi.o
-
 # Virtio interface
 obj-$(CONFIG_CAIF_VIRTIO) += caif_virtio.o