lib/Kconfig: Drop obsolete help text from GENERIC_SPD_BIN

SMBus code is linked unconditionally since commit 0e3c59e. This change
drops that obsolete part from the help text.

Change-Id: I603ab012760684021be1b5eca5d0ddff69463b79
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45145
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/lib/Kconfig b/src/lib/Kconfig
index a6fb1f1..d91ec58 100644
--- a/src/lib/Kconfig
+++ b/src/lib/Kconfig
@@ -34,8 +34,7 @@
 	bool
 	help
 	  If enabled, add support for adding spd.hex files in cbfs as spd.bin
-	  and locating it runtime to load SPD. Additionally provide provision to
-	  fetch SPD over SMBus.
+	  and locating it runtime to load SPD.
 
 config DIMM_MAX
 	int