removed deprecated eu language file (es is available)

res/values-eu-rES/strings.xml

@@ -1,8 +0,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<resources>
-  <!--TODO re-enable when server-side folder size calculation is available   
-    	<item>Biggest - Smallest</item>-->
-  <string name="filedetails_download">Deskargatu</string>
-  <string name="common_cancel">Ezeztatu</string>
-  <string name="empty"></string>
-</resources>