Removed superfluous dots in russian translation of repeat modes.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=155386511

library/ui/src/main/res/values-ru/strings.xml

@@ -22,7 +22,7 @@
   <string name="exo_controls_stop_description">"Остановить"</string>
   <string name="exo_controls_stop_description">"Остановить"</string>
   <string name="exo_controls_rewind_description">"Перемотать назад"</string>
   <string name="exo_controls_rewind_description">"Перемотать назад"</string>
   <string name="exo_controls_fastforward_description">"Перемотать вперед"</string>
   <string name="exo_controls_fastforward_description">"Перемотать вперед"</string>
-  <string name="exo_controls_repeat_all_description">"Повторять все."</string>
-  <string name="exo_controls_repeat_off_description">"Не повторять."</string>
-  <string name="exo_controls_repeat_one_description">"Повторять один элемент."</string>
+  <string name="exo_controls_repeat_all_description">"Повторять все"</string>
+  <string name="exo_controls_repeat_off_description">"Не повторять"</string>
+  <string name="exo_controls_repeat_one_description">"Повторять один элемент"</string>
 </resources>
 </resources>