Change user display name explanation message

auth/src/main/res/values/strings.xml

@@ -33,7 +33,7 @@
     <string name="and">and</string>
     <string name="other">Other</string>
     <string name="display_name">Display name</string>
-    <string name="display_name_explanation">Your display name is how other users on the service will identify you.\n\nThe display name must consist of at least 8 characters, including at least two letters [a–z].\n\nIf you like, you can also use the numeric digits [0–9] and/or a few special characters like the dash, underscore, and period or \"dot\".</string>
+    <string name="display_name_explanation">Your display name is how other users on the service will identify you.</string>
     <string name="weak_password">Weak password</string>
     <string name="fair_password">Fair password</string>
     <string name="good_password">Good password</string>