Remove FR language file since it is handle by Moodle AMOS

Author: CrymSonir

lang/fr/block_course_modulenavigation.php

@@ -25,6 +25,6 @@
 
 $plugin->component = 'block_course_modulenavigation';
 $plugin->release   = '4.1';
-$plugin->version   = 2019052015;
+$plugin->version   = 2020061615;
 $plugin->requires  = 2018051700; // Moodle 3.5 and above.
 $plugin->maturity  = MATURITY_STABLE;