remove obsolete class RadixConverter

pdb-api/src/main/java/org/lucares/pdb/api/RadixConverter.java

@@ -1,42 +0,0 @@
-package org.lucares.pdb.api;
-
-public class RadixConverter {
-
-	private static final String ALPHABET = "0123456789ABCDEFGHIJKLMNOPRSTUVWXYZacbdefghijklmnopqrstuvwxyz";
-
-	public static String toString(final int value) {
-
-		if (value < 0) {
-			throw new IllegalArgumentException("value must not be negative");
-		}
-
-		final StringBuilder result = new StringBuilder();
-		int v = value;
-
-		if (v == 0) {
-			result.append(ALPHABET.charAt(0));
-		} else {
-			while (v > 0) {
-				final int remainder = v % ALPHABET.length();
-				v = v / ALPHABET.length();
-
-				result.insert(0, ALPHABET.charAt(remainder));
-			}
-		}
-
-		return result.toString();
-	}
-
-	public static int fromString(final String string) {
-
-		int result = 0;
-
-		for (int i = 0; i < string.length(); i++) {
-			final int value = ALPHABET.indexOf(string.charAt(i));
-			result = result * ALPHABET.length() + value;
-		}
-
-		return result;
-	}
-
-}