Revert "<third_party/jinja2> FIXUP: Prevent a python IOError on Windows"

This reverts commit 429f117.

The following commit covers this issue:
<tools/gyp> Prevent a python IOError on Windows
759f070

Task-number: QTBUG-46938
Change-Id: I2a9b52cc7628fc146c16b370c0dd3bda096465c1
Reviewed-by: Joerg Bornemann <[email protected]>

Author: stampho

chromium/third_party/jinja2/bccache.py

@@ -207,9 +207,7 @@ def __init__(self, directory=None, pattern='__jinja2_%s.cache'):
         self.pattern = pattern
 
     def _get_cache_filename(self, bucket):
-        # Relative path might be longer than 260 characters (MAX_PATH) especially when
-        # shadow building on Windows. To avoid errors use potentially shorter absolute paths.
-        return path.join(path.abspath(self.directory), self.pattern % bucket.key)
+        return path.join(self.directory, self.pattern % bucket.key)
 
     def load_bytecode(self, bucket):
         f = open_if_exists(self._get_cache_filename(bucket), 'rb')