Mms: remove unnecesary reference to xxhdpi/ic_menu_call.png

ic_menu_call.png is not used anymore and is caused crashed on low resolution devices

Change-Id: Iaafeed7c467cd128908b20361752d20b218c0f40
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_apps_Mms into kitkat