Remove code for svn.IO_error and bzr.IO_error categories since they don't
exist therefore and if this code had ever executed it would have raised
a KeyError.

svn path=/main/trunk/; revision=15222
diff --git a/bin/repoman b/bin/repoman
index 5f46c15..193cc1e 100755
--- a/bin/repoman
+++ b/bin/repoman
@@ -1161,12 +1161,8 @@
 				if vcs == "cvs":
 					stats["CVS/Entries.IO_error"] += 1
 					fails["CVS/Entries.IO_error"].append(checkdir+"/CVS/Entries")
-				elif vcs == "svn":
-					stats["svn.IO_error"] += 1
-					fails["svn.IO_error"].append(checkdir)
-				elif vcs == "bzr":
-					stats["bzr.IO_error"] += 1
-					fails["bzr.IO_error"].append(checkdir)
+				else:
+					raise
 			continue
 
 	mf = Manifest(checkdir, repoman_settings["DISTDIR"])