Tapemaster has made a Stack Overflow post which demonstrates the necessary trick.
adb on your computer.
2. Root your phone.
3. Enter these commands into your computer:
mount -o remount,rw /system
pm uninstall org.unwantedapp
The third command remounts
/system read-write. The fourth command deletes the app's
.odex files. The fifth command finishes the uninstallation.
In my experience: If you have already entered the the fourth command, then the fifth command will return Success. Otherwise, the fifth command will return Failure.
When entering the above commands, you must replace
UnwantedApp with the app's real filename (without the extension), and
org.unwantedapp with the app's real Java package name.