sshrepo: move mkstemp() out of the try block, we don't use the exception

simpler fix for 3b6f18851d87

mercurial/sshserver.py

@@ -181,11 +181,9 b' class sshserver(object):'
         self.respond('')
 
         # write bundle data to temporary file because it can be big
-        tempname = fp = None
-        try:
             fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-')
             fp = os.fdopen(fd, 'wb+')
-
+        try:
             count = int(self.fin.readline())
             while count:
                 fp.write(self.fin.read(count))
@@ -212,9 +210,7 b' class sshserver(object):'
                     self.lock.release()
                     self.lock = None
         finally:
-            if fp is not None:
                 fp.close()
-            if tempname is not None:
                 os.unlink(tempname)
 
     def do_stream_out(self):