wic: direct: don't catch ImagerError

Don't transform ImagerError exception into warning.
Let wic to catch it on the upper level.

(From OE-Core rev: 0cc84c81dd4a776aa37c8d1bcdcc3fa3af78d1e4)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/wic/plugins/imager/direct.py

@@ -290,10 +290,7 @@ class DirectPlugin(ImagerPlugin):
 
     def cleanup(self):
         if self._image:
-            try:
-                self._image.cleanup()
-            except ImageError as err:
-                msger.warning("%s" % err)
+            self._image.cleanup()
 
         # Move results to the output dir
         if not os.path.exists(self.outdir):