pprinter: drop Python 2 unicode shim

The try/except block that defined unicode = str when unicode was not
a builtin was Python 2 compatibility code. In Python 3, unicode does
not exist; str is always correct. Drop the shim and use str directly.

Signed-off-by: Matt Turner <mattst88@gentoo.org>
Part-of: #62

Author: mattst88

pym/gentoolkit/pprinter.py

@@ -162,12 +162,6 @@ def warn(string):
     return "!!! " + string + "\n"
 
 
-try:
-    unicode
-except NameError:
-    unicode = str
-
-
 def uprint(*args, **kw):
     """Replacement for the builtin print function.
 
@@ -199,7 +193,7 @@ def encoded_args():
             if isinstance(arg, bytes):
                 yield arg
             else:
-                yield unicode(arg).encode(encoding, "replace")
+                yield str(arg).encode(encoding, "replace")
 
     sep = sep.encode(encoding, "replace")
     end = end.encode(encoding, "replace")