Fix tests

src/sage/misc/cython.py

@@ -231,16 +231,13 @@ def cython(filename, verbose=0, compile_message=False,
         ....: ''')
 
     In Cython 0.29.33 using `from PACKAGE cimport MODULE` is broken
-    when `PACKAGE` is a namespace package, see :trac:`35322`::
+    when `PACKAGE` is a namespace package, see :trac:`35322`
+    (but as of now sage.misc is not a namespace package, so this passes)::
 
         sage: cython('''
         ....: from sage.misc cimport cachefunc
         ....: ''')
-        Traceback (most recent call last):
-        ...
-        RuntimeError: Error compiling Cython file:
-        ...
-        ...: 'sage/misc.pxd' not found
+        
     """
     if not filename.endswith('pyx'):
         print("Warning: file (={}) should have extension .pyx".format(filename), file=sys.stderr)

src/sage_setup/find.py

@@ -375,11 +375,6 @@ def installed_files_by_module(site_packages, modules=('sage',)):
         sage: f2
         'sage/structure/....pyc'
 
-    Namespace packages::
-
-        sage: files_by_module['sage.graphs.graph_decompositions']
-        set()
-
     This takes about 30ms with warm cache::
 
         sage: timeit('installed_files_by_module(site_packages)',       # random output