*removed* misleading shebang from module

[cottsay]

A shebang is only used when a file is executed directly from the shell (e.g. ./filelock.py). This shebang should be removed for a couple of reasons, either of which render the shebang incorrect:

1. The file does not have executable permissions, and even if it did, they would be removed when the file is installed.
2. Executing the file doesn't do anything useful (it doesn't handle __main__).

This was flagged by the RPM linter when packaged for Fedora Linux.

[AdorablePotato]

Thanks, adding a shebang to all my Python files became somewhat a bad habit.