Remove unused method

Author: mangstadt

src/test/java/ezvcard/util/TestUtils.java

@@ -17,7 +17,6 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-import java.util.TimeZone;
 import java.util.stream.Collectors;
 
 import ezvcard.VCard;
@@ -268,34 +267,6 @@ public static <T> void assertSetEquals(Set<T> actualSet, T... expectedElements)
 		assertEquals(expectedSet, actualSet);
 	}
 
-	/**
-	 * Creates a GMT timezone.
-	 * @param offsetMillis the offset in milliseconds
-	 * @return the timezone
-	 */
-	public static TimeZone gmtTz(long offsetMillis) {
-		long totalMinutes = Math.abs(offsetMillis / 1000 / 60);
-		long hours = totalMinutes / 60;
-		long minutes = totalMinutes % 60;
-
-		StringBuilder tzid = new StringBuilder("GMT");
-		tzid.append((offsetMillis >= 0) ? '+' : '-');
-
-		if (hours < 10) {
-			tzid.append('0');
-		}
-		tzid.append(hours);
-
-		tzid.append(':');
-
-		if (minutes < 10) {
-			tzid.append('0');
-		}
-		tzid.append(minutes);
-
-		return TimeZone.getTimeZone(tzid.toString());
-	}
-
 	/**
 	 * <p>
 	 * Asserts some of the basic rules for the equals() method: