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Fix CVE-2017-14952:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14952

Patch copied from upstream source repository:

http://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cpp#file0

Index: trunk/icu4c/source/i18n/zonemeta.cpp
===================================================================
--- icu/source/i18n/zonemeta.cpp	(revision 40283)
+++ icu/source/i18n/zonemeta.cpp	(revision 40324)
@@ -691,5 +691,4 @@
                     if (U_FAILURE(status)) {
                         delete mzMappings;
-                        deleteOlsonToMetaMappingEntry(entry);
                         uprv_free(entry);
                         break;