avocado.utils.misc: Remove get_relative_path

That function is not used in the avocado code base, and
it is superseded by standard library function
os.path.relpath().
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado/utils/misc.py

@@ -13,7 +13,6 @@
 # Authors: Martin J Bligh <mbligh@google.com>, Andy Whitcroft <apw@shadowen.org>
 
 import logging
-import os
 
 log = logging.getLogger('avocado.test')
 
@@ -78,40 +77,3 @@ def write_file(filename, data):
     """
     with open(filename, 'w') as file_obj:
         file_obj.write(data)
-
-
-def get_relative_path(path, reference):
-    """
-    Given 2 absolute paths "path" and "reference", compute the path of
-    "path" as relative to the directory "reference".
-
-    :param path: The absolute path to convert to a relative path.
-    :param reference: An absolute directory path to which the relative
-                      path will be computed.
-    """
-    # normalize the paths (remove double slashes, etc)
-    assert(os.path.isabs(path))
-    assert(os.path.isabs(reference))
-
-    path = os.path.normpath(path)
-    reference = os.path.normpath(reference)
-
-    # we could use os.path.split() but it splits from the end
-    path_list = path.split(os.path.sep)[1:]
-    ref_list = reference.split(os.path.sep)[1:]
-
-    # find the longest leading common path
-    for i in xrange(min(len(path_list), len(ref_list))):
-        if path_list[i] != ref_list[i]:
-            # decrement i so when exiting this loop either by no match or by
-            # end of range we are one step behind
-            i -= 1
-            break
-    i += 1
-    # drop the common part of the paths, not interested in that anymore
-    del path_list[:i]
-
-    # for each uncommon component in the reference prepend a ".."
-    path_list[:0] = ['..'] * (len(ref_list) - i)
-
-    return os.path.join(*path_list)