Update required Python to 2.5.

setup.py

@@ -46,25 +46,9 @@ A development egg can be found `here
 
 requires = ['Pygments>=1.2', 'Jinja2>=2.3', 'docutils>=0.7']
 
-if sys.version_info < (2, 4):
-    print('ERROR: Sphinx requires at least Python 2.4 to run.')
-    sys.exit(1)
-
 if sys.version_info < (2, 5):
-    # Python 2.4's distutils doesn't automatically install an egg-info,
-    # so an existing docutils install won't be detected -- in that case,
-    # remove the dependency from setup.py
-    try:
-        import docutils
-        if int(docutils.__version__[2]) < 4:
-            raise ValueError('docutils not recent enough')
-    except:
-        pass
-    else:
-        del requires[-1]
-
-    # The uuid module is new in the stdlib in 2.5
-    requires.append('uuid>=1.30')
+    print('ERROR: Sphinx requires at least Python 2.5 to run.')
+    sys.exit(1)
 
 
 # Provide a "compile_catalog" command that also creates the translated