Author: Ankit Agarwal
MDL-60861 analytics: Remove enable menu, if no timesplitting method
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8d6b7f0c6cb18598899aa794b7d79c5f5a2e430c
http://github.com/moodle/moodle/commit/8d6b7f0c6cb18598899aa794b7d79c5f5a2e430c
+ 3.5 en [timesplittingnotdefined,tool_analytics]
+ 3.5 en [timesplittingnotdefined_help,tool_analytics]