Revert "Bug 1030248 - Use native context menu in the search app. r=kgrandon"

This reverts commit 14dc63ba3504bee4447237c81ecf6893a115a297.
Revert "Bug 1030248 - Expand native contextmenu for the search app in order to cover the whole screen. r=kgrandon"

This reverts commit a7f0026d905873050efb128a43a97d2a65051305.