Tools: fix exec permission

Tools/FilterTestTool/FilterTest.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 """ ArduPilot IMU Filter Test Class

Tools/scripts/build_binaries_history.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 from __future__ import print_function
 
 import os

Tools/scripts/build_options.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 '''
 Provide structured data understood by the CustomBuild server app.py