mdadm: Do not install udev rules

We don't want raid assembly done by udev, because we use some mariux
specific tool for it. By not installing these udev rules, we no longer
need to mask them which is currently done by the mdadm-fixup package.

Remove udev rule files from image.

mdadm.be0

@@ -47,4 +47,7 @@ mee_install_post() {
     start_cmd install -D -m 755 ${S}/raid6check   ${D}${BINDIR}
     start_cmd install -D -m 644 ${S}/raid6check.8 ${D}${MANDIR}/man8
     start_cmd install -D -m 755 ${S}/misc/mdcheck ${D}${BINDIR}
+    rm ${D}/lib/udev/rules.d/63-md-raid-arrays.rules
+    rm ${D}/lib/udev/rules.d/64-md-raid-assembly.rules
+    rmdir ${D}/lib/udev/rules.d ${D}/lib/udev ${D}/lib
 }