Update ICU to 54.1 step 1

source/tools/tzcode/icuzdump.cpp

Index: source/tools/tzcode/icuzdump.cpp
diff --git a/source/tools/tzcode/icuzdump.cpp b/source/tools/tzcode/icuzdump.cpp
index ffad9405dab426a0ec88813afbf8c4ff77552c81..b63e877e940eb6bedf5beec7532ce84be6cc7d5a 100644
--- a/source/tools/tzcode/icuzdump.cpp
+++ b/source/tools/tzcode/icuzdump.cpp
@@ -1,7 +1,7 @@
 /*
 *******************************************************************************
 *
-*   Copyright (C) 2007, International Business Machines
+*   Copyright (C) 2007-2014, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 *******************************************************************************
@@ -196,9 +196,6 @@ private:
         hi = gcal->getTime(status);
     }
 
-    void dumpZone(ostream& out, const char* linesep, UnicodeString tzid, int32_t low, int32_t high) {
-    }
-
     TimeZone*   timezone;
     int32_t     loyear;
     int32_t     hiyear;