Fix low battery warnings on lockscreen on some languages

Some languages display incorrect messages, including %%. These were
probably left from an old translation and never removed

See for example
http://forum.xda-developers.com/showpost.php?p=22032273&postcount=694

Change-Id: Ifbbb20472670442f0b826d9ce4b16b2b15fe220e

core/res/res/values-de/strings.xml

@@ -605,7 +605,7 @@
     <string name="lockscreen_discharging">Entladen (<xliff:g id="number">%d</xliff:g>&#x2009;<xliff:g id="percent">%%</xliff:g>)</string>
     <string name="lockscreen_charged" msgid="4938930459620989972">"Aufgeladen"</string>
     <string name="lockscreen_battery_short" msgid="3617549178603354656">"<xliff:g id="NUMBER">%d</xliff:g>&#x2009;<xliff:g id="PERCENT">%%</xliff:g>"</string>
-    <string name="lockscreen_low_battery" msgid="1482873981919249740">"Bitte Ladegerät anschließen (<xliff:g id="number">%d</xliff:g>&#x2009;<xliff:g id="percent">%%</xliff:g>)"</string>
+    <string name="lockscreen_low_battery" msgid="1482873981919249740">"Bitte Ladegerät anschließen"</string>
     <string name="lockscreen_missing_sim_message_short" msgid="7381499217732227295">"Keine SIM-Karte."</string>
     <string name="lockscreen_missing_sim_message" msgid="2186920585695169078">"Keine SIM-Karte im Telefon."</string>
     <string name="lockscreen_missing_sim_instructions" msgid="8874620818937719067">"Bitte legen Sie eine SIM-Karte ein."</string>

core/res/res/values-fi-rFI/strings.xml

@@ -379,7 +379,7 @@
     <string name="lockscreen_charged">Ladattu.</string>
     <string name="lockscreen_battery_short"><xliff:g id="number">%d</xliff:g><xliff:g id="percent">%%</xliff:g></string>
 
-    <string name="lockscreen_low_battery">Liitä laturi (<xliff:g id="number">%d</xliff:g><xliff:g id="percent">%%</xliff:g>)</string>
+    <string name="lockscreen_low_battery">Liitä laturi</string>
 
     <string name="lockscreen_missing_sim_message_short">Ei SIM-korttia.</string>
     <string name="lockscreen_missing_sim_message">Puhelimessa ei ole SIM-korttia.</string>

core/res/res/values-it/strings.xml

@@ -603,7 +603,7 @@
     <string name="lockscreen_discharging">In uso (<xliff:g id="number">%d</xliff:g><xliff:g id="percent">%%</xliff:g>)</string>
     <string name="lockscreen_charged" msgid="4938930459620989972">"Carico."</string>
     <string name="lockscreen_battery_short" msgid="3617549178603354656">"<xliff:g id="NUMBER">%d</xliff:g><xliff:g id="PERCENT">%%</xliff:g>"</string>
-    <string name="lockscreen_low_battery" msgid="1482873981919249740">"Collegare il caricabatterie (<xliff:g id="number">%d</xliff:g><xliff:g id="percent">%%</xliff:g>)"</string>
+    <string name="lockscreen_low_battery" msgid="1482873981919249740">"Collegare il caricabatterie"</string>
     <string name="lockscreen_missing_sim_message_short" msgid="7381499217732227295">"Nessuna SIM presente."</string>
     <string name="lockscreen_missing_sim_message" msgid="2186920585695169078">"Nessuna SIM presente nel telefono."</string>
     <string name="lockscreen_missing_sim_instructions" msgid="8874620818937719067">"Inserisci una SIM."</string>

core/res/res/values-sk/strings.xml

@@ -591,7 +591,7 @@
     <string name="lockscreen_discharging">Batéria (<xliff:g id="number">%d</xliff:g><xliff:g id="percent">%%</xliff:g>)</string>
     <string name="lockscreen_charged">"Nabité."</string>
     <string name="lockscreen_battery_short">"<xliff:g id="NUMBER">%d</xliff:g> <xliff:g id="PERCENT">%%</xliff:g>"</string>
-    <string name="lockscreen_low_battery">"Pripojte nabíjačku (<xliff:g id="number">%d</xliff:g><xliff:g id="percent">%%</xliff:g>)"</string>
+    <string name="lockscreen_low_battery">"Pripojte nabíjačku"</string>
     <string name="lockscreen_missing_sim_message_short">"Nie je vložená karta SIM."</string>
     <string name="lockscreen_missing_sim_message">"V telefóne nie je žiadna karta SIM."</string>
     <string name="lockscreen_missing_sim_instructions">"Vložte kartu SIM."</string>