Removed obsolete toolset unb233.

tools/modelsim/set_modelsim

@@ -41,11 +41,6 @@ elif [ "${TOOLSET}" = "unb2" ]; then
   . ${RADIOHDL}/tools/modelsim/modelsim_version.sh 10.4
   # Next line may be needed, but comment it if it yields ld.so errors
   export LD_PRELOAD=/home/software/freetype2/usr/lib/libfreetype.so
-elif [ "${TOOLSET}" = "unb233" ]; then
-  # unb233 = toolset unb2 on dop233
-  # however better use 'unb2' and comment the export LD_PRELOAD line when on dop233, because the generate_ip.sh scripts use fixed 'unb2'.
-  . ${RADIOHDL}/tools/quartus/quartus_version.sh 14.1
-  . ${RADIOHDL}/tools/modelsim/modelsim_version.sh 10.4
 else
   echo "error: unknown tool setting: ${TOOLSET} (choose 'unb1' or 'unb2')"
   exit 1

tools/quartus/set_quartus

@@ -37,9 +37,6 @@ if [ "${TOOLSET}" = "unb1" ]; then
   . ${RADIOHDL}/tools/quartus/quartus_version.sh 11.1
 elif [ "${TOOLSET}" = "unb2" ]; then
   . ${RADIOHDL}/tools/quartus/quartus_version.sh 14.1
-elif [ "${TOOLSET}" = "unb233" ]; then
-  # unb233 = toolset unb2 on dop233  
-  . ${RADIOHDL}/tools/quartus/quartus_version.sh 14.1
 else
   echo "error: unknown tool setting: ${TOOLSET} (choose 'unb1' or 'unb2')"
   exit 1