meson: drop keymaps symlink

We are building the keymaps by default now.  Drop the keymaps symlink
so the generated files are actually written to the build tree not the
source tree.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Klaus Jensen <k.jensen@samsung.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
Message-id: 20200824074057.3673-1-kraxel@redhat.com

configure

@@ -8120,7 +8120,7 @@ DIRS="$DIRS roms/seabios"
 LINKS="Makefile"
 LINKS="$LINKS tests/tcg/lm32/Makefile"
 LINKS="$LINKS tests/tcg/Makefile.target"
-LINKS="$LINKS pc-bios/optionrom/Makefile pc-bios/keymaps"
+LINKS="$LINKS pc-bios/optionrom/Makefile"
 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
 LINKS="$LINKS roms/seabios/Makefile"
 LINKS="$LINKS pc-bios/qemu-icon.bmp"