Enforce UTF-8 encoding when creating databases

We use InnoDB everywhere, so there should be no issues with long unicode
keys. Dropped charset parameter for recreate_database since it's not
needed anymore.

Change-Id: Ib768402a9337c918309030a92ab81da17269f4f6
diff --git a/lib/ironic b/lib/ironic
index 3f7ae21..acbffaf 100644
--- a/lib/ironic
+++ b/lib/ironic
@@ -380,7 +380,7 @@
 # init_ironic() - Initialize databases, etc.
 function init_ironic {
     # (Re)create  ironic database
-    recreate_database ironic utf8
+    recreate_database ironic
 
     # Migrate ironic database
     $IRONIC_BIN_DIR/ironic-dbsync --config-file=$IRONIC_CONF_FILE