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/glance b/lib/glance
index 8cda6be..8768761 100644
--- a/lib/glance
+++ b/lib/glance
@@ -279,7 +279,7 @@
     mkdir -p $GLANCE_CACHE_DIR
 
     # (Re)create glance database
-    recreate_database glance utf8
+    recreate_database glance
 
     # Migrate glance database
     $GLANCE_BIN_DIR/glance-manage db_sync