fnmatch: Remove dependency on posixpath module.

In micropython-lib, os.path.normcase is already a no-op.

Signed-off-by: Damien George <damien@micropython.org>

fnmatch/fnmatch.py

@@ -11,7 +11,6 @@ corresponding to PATTERN.  (It does not compile it.)
 """
 import os
 import os.path
-import posixpath
 import re
 #import functools
 
@@ -51,15 +50,9 @@ def filter(names, pat):
     result = []
     pat = os.path.normcase(pat)
     match = _compile_pattern(pat)
-    if os.path is posixpath:
-        # normcase on posix is NOP. Optimize it away from the loop.
-        for name in names:
-            if match(name):
-                result.append(name)
-    else:
-        for name in names:
-            if match(os.path.normcase(name)):
-                result.append(name)
+    for name in names:
+        if match(os.path.normcase(name)):
+            result.append(name)
     return result
 
 def fnmatchcase(name, pat):

fnmatch/metadata.txt

@@ -1,4 +1,4 @@
 srctype = cpython
 type = module
 version = 0.5.2
-depends = os, os.path, posixpath, re-pcre
+depends = os, os.path, re-pcre

fnmatch/setup.py

@@ -18,4 +18,4 @@ setup(name='micropython-fnmatch',
       license='Python',
       cmdclass={'sdist': sdist_upip.sdist},
       py_modules=['fnmatch'],
-      install_requires=['micropython-os', 'micropython-os.path', 'micropython-posixpath', 'micropython-re-pcre'])
+      install_requires=['micropython-os', 'micropython-os.path', 'micropython-re-pcre'])