Remove unused strings

Author: ByteHamster

lib/src/main/res/values-de/strings.xml

@@ -1,7 +1,6 @@
 <resources>
     <string name="searchpreference_search">Suchen…</string>
     <string name="searchpreference_clear">Leeren</string>
-    <string name="searchpreference_history_entry">Verlaufseintrag</string>
     <string name="searchpreference_more">Mehr</string>
     <string name="searchpreference_clear_history">Verlauf löschen</string>
     <string name="searchpreference_no_results">Keine Ergebnisse</string>

lib/src/main/res/values-en/strings.xml

@@ -1,7 +1,6 @@
 <resources>
     <string name="searchpreference_search">Search…</string>
     <string name="searchpreference_clear">Clear</string>
-    <string name="searchpreference_history_entry">History entry</string>
     <string name="searchpreference_more">More</string>
     <string name="searchpreference_clear_history">Clear history</string>
     <string name="searchpreference_no_results">No results</string>