Toolchain: Stop building QEMU with i386 support

Author: https://github.com/mrkct
Commit: 401946947c
Pull-request: https://github.com/SerenityOS/serenity/pull/18242
Reviewed-by: https://github.com/karolba ✅

Toolchain/BuildQemu.sh

@@ -62,7 +62,7 @@ echo Using $UI_LIB based UI
 
 pushd "$DIR/Build/qemu"
     "$DIR"/Tarballs/$QEMU_VERSION/configure --prefix="$PREFIX" \
-                                            --target-list=aarch64-softmmu,i386-softmmu,x86_64-softmmu \
+                                            --target-list=aarch64-softmmu,x86_64-softmmu \
                                             --enable-$UI_LIB || exit 1
     make -j "$MAKEJOBS" || exit 1
     make install || exit 1