NUCLEO_L4R5ZI: remove IAR exporter

bcostm · bcostm · commit 5c34602d6bad · 2018-09-27T12:03:08.000+02:00
The STM32L4R5ZI device has been added in IAR V8.20.1

Remove the IAR exporter until IAR V8 is supported on mbed.
diff --git a/tools/export/iar/iar_definitions.json b/tools/export/iar/iar_definitions.json
@@ -11,9 +11,6 @@
     "STM32L496ZG": {
         "OGChipSelectEditMenu": "STM32L496ZG\tST STM32L496ZG"
     },
-    "STM32L4R5ZI": {
-        "OGChipSelectEditMenu": "STM32L4R5ZI\tST STM32L4R5ZI"
-    },
     "STM32L476VG": {
         "OGChipSelectEditMenu": "STM32L476VG\tST STM32L476VG"
     },
