diff --git a/tools/demobench/native/linux/x86/libpty.so b/tools/demobench/native/linux/x86/libpty.so
deleted file mode 100755
index 832504bc8d..0000000000
Binary files a/tools/demobench/native/linux/x86/libpty.so and /dev/null differ
diff --git a/tools/demobench/native/linux/x86_64/libpty.so b/tools/demobench/native/linux/x86_64/libpty.so
deleted file mode 100755
index cd41f3b15b..0000000000
Binary files a/tools/demobench/native/linux/x86_64/libpty.so and /dev/null differ
diff --git a/tools/demobench/native/macosx/x86/libpty.dylib b/tools/demobench/native/macosx/x86/libpty.dylib
deleted file mode 100755
index f05fb026cf..0000000000
Binary files a/tools/demobench/native/macosx/x86/libpty.dylib and /dev/null differ
diff --git a/tools/demobench/native/macosx/x86_64/libpty.dylib b/tools/demobench/native/macosx/x86_64/libpty.dylib
deleted file mode 100755
index 1093ba1c84..0000000000
Binary files a/tools/demobench/native/macosx/x86_64/libpty.dylib and /dev/null differ
diff --git a/tools/demobench/native/win/x86/libwinpty.dll b/tools/demobench/native/win/x86/libwinpty.dll
deleted file mode 100644
index e1644b8ee8..0000000000
Binary files a/tools/demobench/native/win/x86/libwinpty.dll and /dev/null differ
diff --git a/tools/demobench/native/win/x86/winpty-agent.exe b/tools/demobench/native/win/x86/winpty-agent.exe
deleted file mode 100644
index 3abad80b84..0000000000
Binary files a/tools/demobench/native/win/x86/winpty-agent.exe and /dev/null differ
diff --git a/tools/demobench/native/win/x86/winpty.dll b/tools/demobench/native/win/x86/winpty.dll
deleted file mode 100644
index f07b95a27b..0000000000
Binary files a/tools/demobench/native/win/x86/winpty.dll and /dev/null differ
diff --git a/tools/demobench/native/win/x86_64/cyglaunch.exe b/tools/demobench/native/win/x86_64/cyglaunch.exe
deleted file mode 100644
index d84e6e964c..0000000000
Binary files a/tools/demobench/native/win/x86_64/cyglaunch.exe and /dev/null differ
diff --git a/tools/demobench/native/win/x86_64/winpty-agent.exe b/tools/demobench/native/win/x86_64/winpty-agent.exe
deleted file mode 100644
index e1963c4e3c..0000000000
Binary files a/tools/demobench/native/win/x86_64/winpty-agent.exe and /dev/null differ
diff --git a/tools/demobench/native/win/x86_64/winpty.dll b/tools/demobench/native/win/x86_64/winpty.dll
deleted file mode 100644
index f9bdec0394..0000000000
Binary files a/tools/demobench/native/win/x86_64/winpty.dll and /dev/null differ
diff --git a/tools/demobench/native/win/xp/winpty-agent.exe b/tools/demobench/native/win/xp/winpty-agent.exe
deleted file mode 100644
index cc18efda8c..0000000000
Binary files a/tools/demobench/native/win/xp/winpty-agent.exe and /dev/null differ
diff --git a/tools/demobench/native/win/xp/winpty.dll b/tools/demobench/native/win/xp/winpty.dll
deleted file mode 100644
index bd40cd1e9d..0000000000
Binary files a/tools/demobench/native/win/xp/winpty.dll and /dev/null differ