sb/amd: Remove dropped platforms

This code is now unused by any platform.

Change-Id: I60afbde6ead70f0c887866fc351b4a6a15a89287
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69120
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/southbridge/amd/pi/hudson/hudson.c b/src/southbridge/amd/pi/hudson/hudson.c
index e9b26e0..1e9864a 100644
--- a/src/southbridge/amd/pi/hudson/hudson.c
+++ b/src/southbridge/amd/pi/hudson/hudson.c
@@ -88,8 +88,7 @@
 {
 	if (CONFIG(HUDSON_IMC_FWM)) {
 		agesawrapper_fchecfancontrolservice();
-		if (!CONFIG(ACPI_ENABLE_THERMAL_ZONE))
-			enable_imc_thermal_zone();
+		enable_imc_thermal_zone();
 	}
 }