mb/clevo/l140cu: drop disabled SPD indices

Drop the disabled SPD indices from memcfg, since they're already
initialized to 0.

Change-Id: I6d88bdac17222c2c5c35439517fe0bea46744b2b
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46248
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>

src/mainboard/clevo/cml-u/variants/l140cu/romstage.c

@@ -4,17 +4,14 @@
 #include <soc/romstage.h>
 
 static const struct cnl_mb_cfg memcfg = {
-	/* Parameters required to access SPD for CH0D0/CH0D1/CH1D0/CH1D1. */
 	.spd[0] = {
 		.read_type = READ_SPD_CBFS,
 		.spd_spec = {.spd_index = 0},
 	},
-	.spd[1] = {.read_type = NOT_EXISTING},
 	.spd[2] = {
 		.read_type = READ_SMBUS,
 		.spd_spec = {.spd_smbus_address = 0xa4},
 	},
-	.spd[3] = {.read_type = NOT_EXISTING},
 
 	/*
 	 * For each channel, there are 3 sets of DQ byte mappings,