build: Remove old build system

Close #3250.
Close #4081.

bsps/arm/beagle/simscripts/qemu-beagleboard.in

@@ -1,63 +0,0 @@
-#
-#  ARM/BeagleBoard Qemu Support
-#
-
-bspUsesGDBSimulator="no"
-# bspGeneratesGDBCommands="yes"
-# bspSupportsGDBServerMode="yes"
-runBSP=NOT_OVERRIDDEN
-if [ ! -r ${runBSP} ] ; then
-  runBSP=qemu-system-arm
-fi
-bspNeedsDos2Unix="yes"
-bspGeneratesDeviceTree="yes"
-bspInputDevice=qemu-gumstix.cmds
-bspTreeFile=qemu-gumstix.cmds
-bspRedirectInput=yes
-
-runARGS()
-{
-# qemu-system-arm -M connex -m 289 -nographic -monitor null -pflash connex-flash.img <cmds >log
-
-  UBOOT=${HOME}/qemu/u-boot-connex-400-r1604.bin
-  FLASH=connex-flash.img
-  ( dd of=${FLASH} bs=128k count=128 if=/dev/zero ;
-    dd of=${FLASH} bs=128k conv=notrunc if=${UBOOT} ;
-    dd of=${FLASH} bs=1k conv=notrunc seek=4096 if=${1} ) >/dev/null 2>&1
-
-  if [ ${coverage} = yes ] ; then
-     rm -f trace ${1}.tra
-     COVERAGE_ARG="-trace ${1}.tra"
-  fi
-
-  echo "-M connex -m 289 -nographic -monitor null \
-         -pflash ${FLASH} ${COVERAGE_ARG}"
-}
-
-checkBSPFaults()
-{
-  return 0
-}
-
-bspLimit()
-{
-  testname=$1
-  case ${testname} in
-    *stackchk*)limit=5 ;;
-    *fatal*)   limit=1 ;;
-    *minimum*) limit=1 ;;
-    *psxtime*) limit=180 ;;
-    *)         limit=60 ;;
-  esac
-  echo ${limit}
-}
-
-### Generate the commands we boot with
-bspGenerateDeviceTree()
-{
-cat >qemu-gumstix.cmds <<EOF
-
-bootelf 0x400000
-
-EOF
-}