[docs] Remove special handling of CDSL python modules;

cranelift/docs/conf.py

@@ -21,10 +21,6 @@ import os
 import sys
 sys.path.insert(0, os.path.abspath('.'))
 
-# Also add the meta-python directory to sys.path so autodoc can find the Cranelift meta
-# language definitions.
-sys.path.insert(0, os.path.abspath('../cranelift-codegen/meta-python'))
-
 # -- General configuration ------------------------------------------------
 
 # We don't support Sphinx versions before 1.4 since the format of index
@@ -41,7 +37,6 @@ extensions = [
     'sphinx.ext.ifconfig',
     'sphinx.ext.graphviz',
     'sphinx.ext.inheritance_diagram',
-    'clif_domain',
     'clif_lexer',
 ]