remove pipstrip

vendor/pipstrip

@@ -1,15 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-
-req_file = sys.argv[1]
-
-lines = []
-
-with open(req_file, 'r') as f:
-    r = f.readlines()
-    for l in r:
-        lines.append(l.split('--hash')[0])
-
-with open(req_file, 'w') as f:
-    f.write('\n'.join(lines))