Remove URLs for news and version updates

app/src/main/res/values/constants.xml

@@ -21,7 +21,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
 <resources>
     <string name="darksky_api_key"><!-- NOT PROVIDED BY THE DEVELOPER --></string>
     <string name="language_page">https://raw.githubusercontent.com/maksgraczyk/Polassis/master/external_res/lang/pl-PL/</string>
-    <string name="news_url">http://polassis.pl/news_s/news.dat</string>
-    <string name="version_url">http://polassis.pl/news_s/version.dat</string>
+    <string name="news_url"><!-- NOT PROVIDED BY THE DEVELOPER --></string>
+    <string name="version_url"><!-- NOT PROVIDED BY THE DEVELOPER --></string>
     <string name="app_name">Polassis</string>
-</resources>
+</resources>