Revert "[System]Pressing the "battery is low" notification will sometimes cause the rocket bar and keyboard to pop up, and will fail to bring up the battery section in the settings menu"

This reverts commit 10013da4b5a2c46c14a7aa28ed214e6493fb2360.

The original commit did not contain a bug number. This was bug 1091910, which caused bug 1106265.
Bug 1106229 - Remove strings from index.html for modal dialogs r=kgrandon