revert "fixes for RTS/DTR handling on open", bad solution

- with the patch, control lines have wrong initial state on posix
- makes no difference on win32, execpt add code

1 files changed, 8 insertions, 10 deletions

diff --git a/serial/serialposix.py b/serial/serialposix.py
index f5fc43a..67a3fd4 100644
--- a/serial/serialposix.py
+++ b/serial/serialposix.py
@@ -551,19 +551,17 @@ class Serial(SerialBase, PlatformSpecific):
 
     def _update_rts_state(self):
         """Set terminal status line: Request To Send"""
-        if self._rts_state is not None:
-            if self._rts_state:
-                fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_RTS_str)
-            else:
-                fcntl.ioctl(self.fd, TIOCMBIC, TIOCM_RTS_str)
+        if self._rts_state:
+            fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_RTS_str)
+        else:
+            fcntl.ioctl(self.fd, TIOCMBIC, TIOCM_RTS_str)
 
     def _update_dtr_state(self):
         """Set terminal status line: Data Terminal Ready"""
-        if self._dtr_state is not None:
-            if self._dtr_state:
-                fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_DTR_str)
-            else:
-                fcntl.ioctl(self.fd, TIOCMBIC, TIOCM_DTR_str)
+        if self._dtr_state:
+            fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_DTR_str)
+        else:
+            fcntl.ioctl(self.fd, TIOCMBIC, TIOCM_DTR_str)
 
     @property
     def cts(self):