linker: Remove check after copying file

After a file is copied, a check was done if size and mtime of the files
match.

This has very few benefits in what problems it can detect, and can cause
problems on NFS where it can take a short time before the updated
attributes are visible on the new location.

JIRA: RHELCMP-378
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>

pungi/linker.py

@@ -201,11 +201,6 @@ class Linker(kobo.log.LoggingBase):
         shutil.copy2(src, dst)
         self._inode_map[src_key] = dst
 
-        if not self._is_same(src, dst):
-            self.log_error("File %s doesn't match the copied file %s" % (src, dst))
-            # XXX:
-            raise OSError(errno.EEXIST, "File exists")
-
     def _link_file(self, src, dst, link_type):
         if link_type == "hardlink":
             self.hardlink(src, dst)