The micro wouldn't be powerful enough to run the system

src/freedombone-image-hardware-setup

     a20_setup_boot sun7i-a20-olinuxino-lime2.dtb
     enable_serial_console ttyS0
     ;;
-    a20-olinuxino-micro)
-    a20_setup_boot sun7i-a20-olinuxino-micro.dtb
-    enable_serial_console ttyS0
-    ;;
     cubieboard2)
     a20_setup_boot sun7i-a20-cubieboard2.dtb
     enable_serial_console ttyS0

src/freedombone-image-make

  --roottype btrfs \
 "
     ;;
-    cubietruck | a20-olinuxino-lime2 | a20-olinuxino-micro | cubieboard2)
+    cubietruck | a20-olinuxino-lime2 | cubieboard2)
        extra_pkgs="$a20_pkgs"
        extra_opts="\
  --variant minbase \

src/freedombone-image-makefile

 	$(SIGN)
 	@echo "Build complete."
 
-# build A20 OLinuXino MIRCO SD card image
-a20-olinuxino-micro: prep
-	$(eval ARCHITECTURE = armhf)
-	$(eval MACHINE = a20-olinuxino-micro)
-	$(MAKE_IMAGE)
-	$(TAR) $(ARCHIVE) $(IMAGE)
-	@echo ""
-	$(SIGN)
-	@echo "Build complete."
-
 # build an i386 image
 i386: prep
 	$(eval ARCHITECTURE = i386)