diff --git a/tinytuya/Contrib/IRRemoteControlDevice.py b/tinytuya/Contrib/IRRemoteControlDevice.py
index 956e7697..12a27d2f 100644
--- a/tinytuya/Contrib/IRRemoteControlDevice.py
+++ b/tinytuya/Contrib/IRRemoteControlDevice.py
@@ -115,7 +115,6 @@
 import logging
 import struct
 import time
-from math import ceil, floor
 
 from ..core import Device, log, CONTROL
 
@@ -461,7 +460,7 @@ def head_key_to_pulses( head, key ):
                     data += '0'
             else:
                 # if the first byte is 0, the next byte is how many bits to transmit
-                byts = ceil( bits / 8 )
+                byts = int( (bits + 7) / 8 )
                 cnt = byts * 2
                 data = key[:cnt]
 
diff --git a/tinytuya/core.py b/tinytuya/core.py
index 103d50ef..93fa840d 100644
--- a/tinytuya/core.py
+++ b/tinytuya/core.py
@@ -1728,13 +1728,6 @@ def decrypt_udp(msg):
         return payload
     return decrypt(msg, udpkey)
 
-# Return positive number or zero
-def floor(x):
-    if x > 0:
-        return x
-    else:
-        return 0
-
 
 def appenddevice(newdevice, devices):
     if newdevice["ip"] in devices: