Simplify conditionals

defs.bzl

@@ -2,21 +2,21 @@ def gmaven_artifact(fqn):
   parts = fqn.split(":")
   packaging = "aar"
 
-  if len(parts) < 2 or len(parts) > 5:
-    fail("Invalid qualified name for artifact: %s" % fqn)
-  elif len(parts) == 3:
+  if len(parts) == 3:
     group_id, artifact_id, version = parts
   elif len(parts) == 4:
     group_id, artifact_id, version, packaging = parts
   elif len(parts) == 5:
     _, _, _, _, classifier = parts
     fail("Classifiers are currently not supported. Please remove it from the coordinate: %s" % classifier)
+  else:
+    fail("Invalid qualified name for artifact: %s" % fqn)
 
   return "@%s_%s_%s//%s" % (
-        escape(group_id),
-        escape(artifact_id),
-        escape(version),
-        packaging
+      escape(group_id),
+      escape(artifact_id),
+      escape(version),
+      packaging
       )
 
 def escape(string):