diff --git a/speed.sh b/speed.sh
index f9b4493..73d5935 100755
--- a/speed.sh
+++ b/speed.sh
@@ -42,12 +42,3 @@ for version in $python_versions; do
         "$version" -mtimeit -s'from rsa.transform import _int2bytes; n = 1<<4096' '_int2bytes(n)'
     fi
 done
-
-echo "bit_size speed test"
-for version in $python_versions; do
-    if check_command "$version"; then
-        echo "$version"
-        "$version" -mtimeit -s'from rsa.common import bit_size; n = 1<<4096' 'bit_size(n)'
-        "$version" -mtimeit -s'from rsa.common import _bit_size; n = 1<<4096' '_bit_size(n)'
-    fi
-done