architecture/mips: remove support for old MIPS based CPUs

Anyway it is highly unlikely that anyone will use OpenSDE to build a system
for those vintage-style CPU models.

architecture/mips/config.in

@@ -45,20 +45,7 @@ choice SDECFG_MIPS_OPT generic   \
 	74kf3_2		"Optimised for MIPS 74Kf (3:2 Core/FPU clock ratio)"	\
 	1004kc		"Optimised for MIPS 1004Kc"				\
 	1004kf2_1	"Optimised for MIPS 1004Kf (2:1 Core/FPU clock ratio)"  \
-	1004kf1_1	"Optimised for MIPS 1004Kf (1:1 Core/FPU clock ratio)"	\
-	r2000	"Build for R2000 CPU"		\
-	r3000	"Build for R3000 CPU"		\
-	r3900	"Build for R3900 CPU"		\
-	r4000	"Build for R4000 CPU"		\
-	r4100	"Build for R4100 CPU"		\
-	r4300	"Build for R4300 CPU"		\
-	r4400	"Build for R4400 CPU"		\
-	r4600	"Build for R4600 CPU"		\
-	r4650	"Build for R4650 CPU"		\
-	r5000	"Build for R5000 CPU"		\
-	r6000	"Build for R6000 CPU"		\
-	r8000	"Build for R8000 CPU"		\
-	orion	"Build for Orion CPU"
+	1004kf1_1	"Optimised for MIPS 1004Kf (1:1 Core/FPU clock ratio)"
 
 if [ $SDECFG_MIPS_OPT != generic ] ; then
 	SDECFG_ID="$SDECFG_ID-$SDECFG_MIPS_OPT"