Trim ICU data to reduce the download size/memory usage

icu52/source/data/curr/mer.txt

Index: icu52/source/data/curr/mer.txt
===================================================================
--- icu52/source/data/curr/mer.txt	(revision 259715)
+++ icu52/source/data/curr/mer.txt	(working copy)
@@ -83,10 +83,6 @@
             "£",
             "Paũndi ya Ngeretha",
         }
-        GHC{
-            "GHC",
-            "Sedi ya Ghana",
-        }
         GMD{
             "GMD",
             "Dalasi ya Gambia",
@@ -143,10 +139,6 @@
             "MWK",
             "Kwacha ya Malawi",
         }
-        MZM{
-            "MZM",
-            "Metikali ya Mozambĩkĩ",
-        }
         NAD{
             "NAD",
             "Dola ya Namibia",
@@ -219,18 +211,10 @@
             "ZAR",
             "Randi ya Afrika ya Sauthi",
         }
-        ZMK{
-            "ZMK",
-            "Kwacha ya Zambia (1968–2012)",
-        }
         ZMW{
             "ZMW",
             "Kwacha ya Zambia",
         }
-        ZWD{
-            "ZWD",
-            "Dola ya Zimbabwe",
-        }
     }
     Version{"2.0.92.87"}
 }