Revert "[1/4] Dialer: Add Dialer suggestions and reverse lookup"

To be replaced with Slim's implementation ->

http://gerrit.nameless-rom.org/#/c/945/

This reverts commit 8fa76165b4374f9c417fe2d838986299ef3db20f.

Change-Id: I058aeed8ff5427b9f0d257d81ec3ffdb78814034