vendor/cm: remove few packages from the build

- Removed old school live wallpapers
- Removed Launcher3. Trebuchet is already included
- Removed CMUpdater packages
- Removed Video Editor

This is will reduce the build size without affecting
daily usage of the ROM.

Change-Id: I81bd0956704cebd5cdd368a6dfe900bcdb7a1c51
Signed-off-by: Shubhang Rathore <shubhang92@gmail.com>