Revert "hw/mips: MIPS Boston board support"

This reverts commit d3473e147a.

This commit creates a board which defaults to having 2GB of RAM.
Unfortunately on 32-bit hosts we can't create boards with 2GB of RAM,
and so 'make check' fails. I missed this during testing of the
merge, unfortunately. Luckily the offending commit is the last
one in the merge request, so we can just revert it for now.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

configure

@@ -3378,7 +3378,7 @@ fi
 fdt_required=no
 for target in $target_list; do
   case $target in
-    aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu)
+    aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu)
       fdt_required=yes
     ;;
   esac

default-configs/mips64el-softmmu.mak

@@ -10,6 +10,3 @@ CONFIG_JAZZ=y
 CONFIG_G364FB=y
 CONFIG_JAZZ_LED=y
 CONFIG_VT82C686=y
-CONFIG_MIPS_BOSTON=y
-CONFIG_FITLOADER=y
-CONFIG_PCI_XILINX=y

hw/mips/Makefile.objs

@@ -4,4 +4,3 @@ obj-$(CONFIG_JAZZ) += mips_jazz.o
 obj-$(CONFIG_FULONG) += mips_fulong2e.o
 obj-y += gt64xxx_pci.o
 obj-$(CONFIG_MIPS_CPS) += cps.o
-obj-$(CONFIG_MIPS_BOSTON) += boston.o