Revert "Merge "Add 900 for Russia - Short code used by Sberbank.""

This reverts commit 9a769a482861496686a4138a0a9b612a08fce8f8, reversing
changes made to 6fb921a61b0ca6bac8002e0fdbeb521453dce408.
diff --git a/core/res/res/xml/sms_short_codes.xml b/core/res/res/xml/sms_short_codes.xml
index f86b641..a9fa5e0d 100644
--- a/core/res/res/xml/sms_short_codes.xml
+++ b/core/res/res/xml/sms_short_codes.xml
@@ -187,8 +187,8 @@
     <!-- Romania: 4 digits, plus EU: http://www.simplus.ro/en/resources/glossary-of-terms/ -->
     <shortcode country="ro" pattern="\\d{4}" premium="12(?:63|66|88)|13(?:14|80)" free="116\\d{3}|3654" />
 
-    <!-- Russia: 4 digits, known premium codes listed: http://smscoin.net/info/pricing-russia/. 900 listed as possible premium for Sberbank. -->
-    <shortcode country="ru" pattern="\\d{4}|900" premium="1(?:1[56]1|899)|2(?:09[57]|322|47[46]|880|990)|3[589]33|4161|44(?:4[3-9]|81)|77(?:33|81)|8424" />
+    <!-- Russia: 4 digits, known premium codes listed: http://smscoin.net/info/pricing-russia/ -->
+    <shortcode country="ru" pattern="\\d{4}" premium="1(?:1[56]1|899)|2(?:09[57]|322|47[46]|880|990)|3[589]33|4161|44(?:4[3-9]|81)|77(?:33|81)|8424" />
 
     <!-- Saudi Arabia -->
     <shortcode country="sa" free="8145" />