Update ICU to 54.1 step 1

source/common/unistr.cpp

Index: source/common/unistr.cpp
diff --git a/source/common/unistr.cpp b/source/common/unistr.cpp
index a21c1b4a26571f3e3ecc9fa69bd92b0a53d6ec88..f103e816835a8453f21fff84ead68b38f3228ba5 100644
--- a/source/common/unistr.cpp
+++ b/source/common/unistr.cpp
@@ -1,6 +1,6 @@
 /*
 ******************************************************************************
-* Copyright (C) 1999-2013, International Business Machines Corporation and
+* Copyright (C) 1999-2014, International Business Machines Corporation and
 * others. All Rights Reserved.
 ******************************************************************************
 *
@@ -459,12 +459,12 @@ UnicodeString::fastCopyFrom(const UnicodeString &src) {
 UnicodeString &
 UnicodeString::copyFrom(const UnicodeString &src, UBool fastCopy) {
   // if assigning to ourselves, do nothing
-  if(this == 0 || this == &src) {
+  if(this == &src) {
     return *this;
   }
 
   // is the right side bogus?
-  if(&src == 0 || src.isBogus()) {
+  if(src.isBogus()) {
     setToBogus();
     return *this;
   }