If you had ADB debugging enabled, there is an easy way to do this using the SDK.
All you have to do is connect the device to the computer while it is booting, and type:
mount -o remount,rw /system
rm -rvf /system/libskia.so
mv /system/libskia.so-back /system/libskia.so
To get the ADB binary you will have to download the Android SDK, or Google 'Android Mini SDK'.
If you didn't have USB debugging enabled, then the only thing you can do is flash a new ROM. You would have to install CWM recovery, and find a ROM for your device.
If your device has fastboot you can easily flash a recovery file that has been made for your device by using the
fastboot flash recovery <recovery .img file path>.