I have a hack-backdoor that works !!!
I have a zte primetime k92 and I downloaded the SDK Package for my android on my windows operating system
You must enable debug- Go to your settings and then about tablet, 2nd from bottom is build # hit that 7 times for developer
Once you have that go into the developer settings and hit usb debug.. Allow it..
Once you have that, go to the sdk package and shift right click the folder with the sdk platform in it.. You will be at the open the command window.. On that you can use the commands for the adb drivers command "adb devices"
That will list the usb device plugged in on debugging. Mine was a CALLED Primrose. Which is the code for the primetime tablet..
After you see the listing you can call up another command called "adb shell" that will list your device name or your name.
Mine was
Robert:/ $ pm list users
Next, remove the 3 touchpal packages that come preinstalled for the users.
These are the commands I used
Robert:/ $ pm uninstall -k --user 0 com.emoji.keyboard.touchpal
Success
Robert:/ $ pm uninstall -k --user 0 com.cootek.smartinputv5.language.spanishus
Success
Robert:/ $ pm uninstall -k --user 0 com.cootek.smartinputv5.language.englishgb
There is other languages, but I just put in the first 2 and they were removed ..
I checked my tablet and yes TOUCHPAL is gone !!!!
Success
Robert:/ $
If you put in the uninstall code right it will say success after each step.
I looked long and hard for 2 days on this and took bits and pieces from many forums and its gone.
I hope this helps others.. So the way to delete them is through sdk adb platforms tool .
GOODLUCK , Anyone that can explain things better or whatever from this post.. feel free!!