ICU-20279 Remove MSVC specific macro _ARM64_

Remove unneeded check for MSVC internal _ARM64_ macro in normlzr.cpp

diff --git a/icu4c/source/common/normlzr.cpp b/icu4c/source/common/normlzr.cpp
index 607660c45f1139b65fbc87405affdfb72410900f..2dea0ffc33c91daed7e47c086e252158a5d87f19 100644 (file)
--- a/icu4c/source/common/normlzr.cpp
+++ b/icu4c/source/common/normlzr.cpp
@@ -23,7 +23,7 @@
 #include "normalizer2impl.h"
 #include "uprops.h"  // for uniset_getUnicode32Instance()
 
-#if defined(_ARM64_) && defined(move32)
+#if defined(move32)
  // System can define move32 intrinsics, but the char iters define move32 method
  // using same undef trick in headers, so undef here to re-enable the method.
 #undef move32