Move patches to unapplied

paper-server/patches/sources/net/minecraft/util/StringUtil.java.patch

@@ -1,28 +0,0 @@
---- a/net/minecraft/util/StringUtil.java
-+++ b/net/minecraft/util/StringUtil.java
-@@ -67,6 +67,25 @@
-         return name.length() <= 16 && name.chars().filter(c -> c <= 32 || c >= 127).findAny().isEmpty();
-     }
- 
-+    // Paper start - Username validation
-+    public static boolean isReasonablePlayerName(final String name) {
-+        if (name.isEmpty() || name.length() > 16) {
-+            return false;
-+        }
-+
-+        for (int i = 0, len = name.length(); i < len; ++i) {
-+            final char c = name.charAt(i);
-+            if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || (c == '_' || c == '.')) {
-+                continue;
-+            }
-+
-+            return false;
-+        }
-+
-+        return true;
-+    }
-+    // Paper end - Username validation
-+
-     public static String filterText(String string) {
-         return filterText(string, false);
-     }