Is there a way to remove kernel 3.1 from Oneiric?

I downloaded and upgraded to 3.1 with these instructions:

Open the terminal and run these two commands for both 32-bit and 64-bit versions of Ubuntu 11.10/11.04:

wget http://kernel.ubuntu.com/~kernel-ppa...241006_all.deb
sudo dpkg -i linux-headers-3.1.0-030100_3.1.0-030100.201110241006_all.deb

Ubuntu (64-bit)

For Ubuntu 11.10/11.04 (64-bit), issue these commands:

wget http://kernel.ubuntu.com/~kernel-ppa...1006_amd64.deb
sudo dpkg -i linux-headers-3.1.0-030100-generic_3.1.0-030100.201110241006_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa...1006_amd64.deb
sudo dpkg -i linux-image-3.1.0-030100-generic_3.1.0-030100.201110241006_amd64.deb

Everything went well. I was able to reboot quickly, but Firefox and Chrome constantly crash with Kernel 3.1. I am using Gnome 3.2 and saw improvement with 3.0.0.13 provided by ppa. Any help with 3.1 or just removing it would be helpful. Thanks to all that reply.