[*/regression] Drop unused shebang

The regression python scripts are not marked executable. Also they
expect that the Makefile has setup the environment correctly so just
marking them executable would not be useful. So drop the unused shebang
to avoid encoding the interpreter in multiple places.

Script/regression.py is a library so it also doesn't need a shebang.

LibOS/shim/test/regression/00_bootstrap.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

LibOS/shim/test/regression/30_futex.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

LibOS/shim/test/regression/30_mmap.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

LibOS/shim/test/regression/40_proc_path.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys
 from regression import Regression
 

LibOS/shim/test/regression/80_epoll_wait_timeout.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

LibOS/shim/test/regression/80_sockets.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

LibOS/shim/test/regression/90_large-mmap.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/00_Atomics.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/00_Bootstrap.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/00_Symbols.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/01_Exception.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/02_Directory.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap, random, string, shutil
 from regression import Regression
 

Pal/regression/02_File.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap, random, string, binascii
 from regression import Regression
 

Pal/regression/02_Memory.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/02_Misc.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/02_Pipe.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/02_Semaphore.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap, random, string
 from regression import Regression
 

Pal/regression/02_Socket.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/02_Thread.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/03_Process.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/04_Ipc.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/04_SendHandle.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/05_Process.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python2
 ## This test is specifically for the reference monitor code, not process creation in general.
 ## It is not well-tested right now, but keep the tests around for future work.
 

Pal/regression/05_Reference_Monitor.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Pal/regression/06_AvxDisable.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import os, sys, mmap
 from regression import Regression
 

Scripts/regression.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python2
-
 import sys, os, subprocess, re, time
 
 class Result: