Move ICU headers from public/{common,i18n} to source/{common,i18n}

public/common/unicode/usystem.h

Index: public/common/unicode/usystem.h
diff --git a/public/common/unicode/usystem.h b/public/common/unicode/usystem.h
deleted file mode 100644
index 5d83c8d7d433167b5751f240f1fbd6847eb2094f..0000000000000000000000000000000000000000
--- a/public/common/unicode/usystem.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
-*******************************************************************************
-*   Copyright (C) 2004-2010, International Business Machines
-*   Corporation and others.  All Rights Reserved.
-*******************************************************************************
-*
-*   file name:  usystem.h
-*   encoding:   US-ASCII
-*   tab size:   8 (not used)
-*   indentation:4
-*
-*   Created by: genheaders.pl, a perl script written by Ram Viswanadha
-*
-*  Contains data for commenting out APIs.
-*  Gets included by umachine.h
-*
-*  THIS FILE IS MACHINE-GENERATED, DON'T PLAY WITH IT IF YOU DON'T KNOW WHAT
-*  YOU ARE DOING, OTHERWISE VERY BAD THINGS WILL HAPPEN!
-*/
-
-#ifndef USYSTEM_H
-#define USYSTEM_H
-
-#ifdef U_HIDE_SYSTEM_API
-
-#    if U_DISABLE_RENAMING
-#        define u_cleanup u_cleanup_SYSTEM_API_DO_NOT_USE
-#        define u_setAtomicIncDecFunctions u_setAtomicIncDecFunctions_SYSTEM_API_DO_NOT_USE
-#        define u_setMemoryFunctions u_setMemoryFunctions_SYSTEM_API_DO_NOT_USE
-#        define u_setMutexFunctions u_setMutexFunctions_SYSTEM_API_DO_NOT_USE
-#        define ucnv_setDefaultName ucnv_setDefaultName_SYSTEM_API_DO_NOT_USE
-#        define uloc_getDefault uloc_getDefault_SYSTEM_API_DO_NOT_USE
-#        define uloc_setDefault uloc_setDefault_SYSTEM_API_DO_NOT_USE
-#    else
-#        define u_cleanup_4_6 u_cleanup_SYSTEM_API_DO_NOT_USE
-#        define u_setAtomicIncDecFunctions_4_6 u_setAtomicIncDecFunctions_SYSTEM_API_DO_NOT_USE
-#        define u_setMemoryFunctions_4_6 u_setMemoryFunctions_SYSTEM_API_DO_NOT_USE
-#        define u_setMutexFunctions_4_6 u_setMutexFunctions_SYSTEM_API_DO_NOT_USE
-#        define ucnv_setDefaultName_4_6 ucnv_setDefaultName_SYSTEM_API_DO_NOT_USE
-#        define uloc_getDefault_4_6 uloc_getDefault_SYSTEM_API_DO_NOT_USE
-#        define uloc_setDefault_4_6 uloc_setDefault_SYSTEM_API_DO_NOT_USE
-#    endif /* U_DISABLE_RENAMING */
-
-#endif /* U_HIDE_SYSTEM_API */
-#endif /* USYSTEM_H */
-