tree/: Drop default_spi_probe_opcode for NULL case

A NULL func pointer is necessary and sufficient for the
condition `NULL func pointer => true' as to not need this
boilerplate as it implies default behaviour of a supported
opcode within the `check_block_eraser()` match supported loop.

Ran;
```
$  find . -name '*.[c,h]' -exec sed -i '/.probe_opcode	= default_spi_probe_opcode,/d' '{}' \;
```

Change-Id: Id502c5d2596ad1db52faf05723083620e4c52c12
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/70264
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Thomas Heijligen <src@posteo.de>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/asm106x.c b/asm106x.c
index 78c0b74cd..0c9cf111d 100644
--- a/asm106x.c
+++ b/asm106x.c
@@ -125,7 +125,6 @@ static const struct spi_master asm106x_spi_master = {
 	.shutdown	= asm106x_shutdown,
 	.read		= default_spi_read,
 	.write_256	= default_spi_write_256,
-	.probe_opcode	= default_spi_probe_opcode,
 };
 
 static int asm106x_init(const struct programmer_cfg *cfg)